Top definition
When your at a concert and the person in front of you farts.
You are at a concert and you fart
Does not matter if it is an indoor or outdoor concert you still farted in a enclosed space...on someone and did not excuse yourself.
*band playing your favourite song*

Me: AWH man what's that smell. It is ruining this song for me I can no longer like this song as I will always remember this smell while listening to it.
Friend: I think that girl in front of us just did a foncart

Or

Me: AWH shit man I just did a foncart
Friend: That's not cool (no longer your friend)
by Erinator January 08, 2013
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