casse-couilles

3/5 · Vulgar

What it means

Someone or something that is a pain in the arse.

Literally “testicle breaker”. Short editorial gloss; not an etymological claim.

Pronunciation Heard as “kass koo yee”

English spellings approximate sounds and omit some contrasts. Use as retrieval hints, not authoritative pronunciation.

Used as Coarse / informal

How it's used

Hyphenated noun/adjective; not a literal injury.

How strong is it? 3/5 · Vulgar

Hyphenated noun/adjective; not a literal injury. Ratings are contextual editorial estimates, not calibrated probabilities.

abruti

Insult for a complete fool.

avoir de la merde dans les yeux

Fail to see something obvious or judge it properly.

avoir des couilles

Have courage or nerve.

avoir du cul

Be very lucky.