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1.
Term used to describe homosexual intercourse.
Trent often partakes in backdoor shenanigans with as many men as he can find.
by omg i am wtf uber November 05, 2006
 
2.
If you hear the words backdoor shenanigans and your face lights up like a Christmas tree you know what it is.

The act of playing fuck fuck games while pounding your lover in the ass.
Ian had to politely asked Ben to stop all the backdoor shenanigans, until after he applied his anal ease cream.

Andy and Rick are always participating in backdoor shenanigans.
by Valtrax June 18, 2009