Top definition
It is accurately defined as a phrase used in an intense situation in which something good or bad has happened and "aw snap" or "snap" are not effective.
"That bitch just got kicked in the ass! FASNAP!"
by jeff August 07, 2004
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2
Fasnaps is a type of fake Snapchat account. Kind of like a Finsta (Finsta is a fake insta for funny and embarrassing pics aside from a normal Instagram) so a Fasnaps is a fake snapchat account for close friends to see you posting what you normally are like.
Dude, your Fasnaps are the funniest. I think you posted that pic to your Fasnaps before!
by Imakemywords. September 11, 2016
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