French word couillu comes from French couille ((slang, vulgar) nut, ball, bollock (testicle).), French -u
Dictionary entry | Language | Definition |
---|---|---|
couille | French (fra) | (slang, vulgar) nut, ball, bollock (testicle). |
-u | French (fra) | Forming adjectives having the sense of ‘having quality of, being provided with’ (the root word). |
couillu | French (fra) | (by extension, vulgar) ballsy; brave; courageous. (vulgar) having testicles. |