C1 Idiom Informell

zjeść zęby na tym

to be an expert

Bedeutung

To have extensive experience.

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Kultureller Hintergrund

In Poland, the 'złota rączka' (golden hand/handyman) is a cultural icon. These individuals are often described as having 'eaten their teeth' on everything from plumbing to electronics, reflecting a post-war necessity for self-reliance. The idiom resonates with the traditional European guild system where mastery was only achieved after decades. In Poland, this 'master-apprentice' relationship is still respected in trades like baking and carpentry. Polish academia is very hierarchical. A professor who has 'eaten their teeth' on a subject is granted immense social status, often more than someone with just a high-paying job. Younger generations in Warsaw or Kraków use the idiom ironically to describe their 'long' three-year tenure in a startup, showing how the phrase is adapting to faster career cycles.

🎯

Use it for credibility

If you want to sound like a senior professional in Poland, use this idiom instead of just saying 'I have 10 years of experience'.

⚠️

Check your case!

The most common mistake is using the wrong case after 'na'. Always use Locative (Miejscownik).

Bedeutung

To have extensive experience.

🎯

Use it for credibility

If you want to sound like a senior professional in Poland, use this idiom instead of just saying 'I have 10 years of experience'.

⚠️

Check your case!

The most common mistake is using the wrong case after 'na'. Always use Locative (Miejscownik).

💬

Respect the elders

Using this to describe an older person's career is a high form of respect in Polish culture.

Teste dich selbst

Fill in the missing words in the correct form.

Mój wujek jest świetnym krawcem. _________ _________ na szyciu garniturów.

✓ Richtig! ✗ Nicht ganz. Richtige Antwort: Zjadł zęby

The subject is 'wujek' (he), so we use the masculine past tense 'zjadł' followed by 'zęby'.

Which sentence is grammatically correct?

Choose the correct option:

✓ Richtig! ✗ Nicht ganz. Richtige Antwort: Zjadłem zęby na mechanice.

The idiom requires 'na' + Locative case (mechanice).

Match the person to the thing they likely 'ate their teeth' on.

Match the pairs:

✓ Richtig! ✗ Nicht ganz. Richtige Antwort: 1-B, 2-C, 3-A

A sailor eats teeth on the sea, an accountant on taxes, and a professor on lectures.

Complete the dialogue with the idiom.

A: Czy ten mechanik jest dobry? B: Tak, on ____________________ na starych mercedesach.

✓ Richtig! ✗ Nicht ganz. Richtige Antwort: zjadł zęby

The context implies the mechanic is an expert on old Mercedes cars.

🎉 Ergebnis: /4

Visuelle Lernhilfen

Experience Levels

Novice
Fryc Newbie
Expert
Zjadł zęby Eaten teeth

Aufgabensammlung

4 Aufgaben
Fill in the missing words in the correct form. Fill Blank B1

Mój wujek jest świetnym krawcem. _________ _________ na szyciu garniturów.

✓ Richtig! ✗ Nicht ganz. Richtige Antwort: Zjadł zęby

The subject is 'wujek' (he), so we use the masculine past tense 'zjadł' followed by 'zęby'.

Which sentence is grammatically correct? Choose B2

Choose the correct option:

✓ Richtig! ✗ Nicht ganz. Richtige Antwort: Zjadłem zęby na mechanice.

The idiom requires 'na' + Locative case (mechanice).

Match the person to the thing they likely 'ate their teeth' on. situation_matching B1

Match the pairs:

✓ Richtig! ✗ Nicht ganz. Richtige Antwort: 1-B, 2-C, 3-A

A sailor eats teeth on the sea, an accountant on taxes, and a professor on lectures.

Complete the dialogue with the idiom. dialogue_completion A2

A: Czy ten mechanik jest dobry? B: Tak, on ____________________ na starych mercedesach.

✓ Richtig! ✗ Nicht ganz. Richtige Antwort: zjadł zęby

The context implies the mechanic is an expert on old Mercedes cars.

🎉 Ergebnis: /4

Häufig gestellte Fragen

10 Fragen

Yes, you can say you 'ate your teeth' on a difficult situation, implying you learned a hard lesson.

It's a bit too informal for a CV document, but perfect for the interview itself.

Yes, 'zjeść ząb' (singular) is not an idiom and would sound like a dental accident.

The verb changes (zjadłam), but 'zęby' remains the same.

It's rare, but it could mean you've spent a lot of time dealing with someone's difficult personality.

Being a 'zielony' (green/newbie) or 'fryc' (novice).

Yes, it is a universal Polish idiom.

Absolutely. 'Zjadł zęby na boisku' is very common.

Usually, yes, or at least that they have been doing the activity for a very long time.

Yes! 'Zjadłem zęby na gramatyce polskiej' is a great sentence for a C1 learner.

Verwandte Redewendungen

🔄

stary wyga

synonym

An old hand / a veteran

🔗

mieć coś w małym palcu

similar

To know something perfectly

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znać jak własną kieszeń

similar

To know something like one's own pocket

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wyjadacz

synonym

A pro / an old pro

🔗

frycowe płacić

contrast

To pay the 'novice fee' (make beginner mistakes)

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