This term is also used in French to tell someone is completly drunk and / or under drugs.
Note that in French, you write it : 'Défoncé' if he's a guy or 'Défoncée' if she's a girl.
Synonyms for Defonce
On this page, you will find 30 slang terms related to Defonce. Some of the top words include: HALF-BAKED, drizz, Like, plow, Alchamahol, and 25 more.