déconner

a french slang word, meaning “to talk bullsh-t”.
arrête de déconner！
multi-purpose french verb, roughly equivalent to “f-ck” in english.

etymologically, means to “accidentally pull out of the v-g-n- during intercourse”.

in its current use, it could mean :

– to kid, to tease, to f-ck with somebody.
– to goof, mess, kid, d-ck, or f-ck around (or about).
– to be dysfunctional, or f-cked up.
– to make a bad (though funny) mistake, to f-ck up.
to f-ck with somebody :

– hey, bob – how’s your room ? cleaned up already ? your mom says she’ll come up in 5 minutes.
– (panicked yell) f-ck !!!!!!
– naaah, je déconne :-d !

to f-ck around :

– yeah … about scott … he’s been d-cking around for 15 years = ça fait quinze ans qu’il p-sse son temps à déconner … maybe that would not hurt him to get a bit serious, for a change !

to be f-cked up :

– hey, matt, heard about the latest decision of the supreme court ? they ruled that a corporation is a person with freedom of speach, and therefore should be ok’d to donate to an electoral campaign.
– putain, ils déconnent sec, ceux-là !

(alternative) :

– putain de bordel de connerie d’écran de merde !!

– what’s going on, ryan ?
– that f-cking crt screen … il déconne encore !

to f-ck up :

– so spud showed up high at his job interview …

– oh jeez :-d ! c’est déconneeeeeer !!