Top Definition
a person who is normally funny in a dirty-minded way
god that was gross!! GOOD ONE! That sounds like just what Fallyn would say
by wiwiwiwiwiwiwiw June 05, 2009
dirty mined, spiteful, slutty, whorish
i cant belive that video she made it was so fallyn!
by the man314 August 16, 2011
someone having been caught fucking barney.
"Goddammit Casey, get that purple thing out of your mouth!!, your fallyning again!!.
by chad vader99 June 03, 2009
A rotten fruit or bad in bed
We couldn't eat the fruit because it was fallyn
by mhm ok April 20, 2009
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