Sexual Shenanigans whereby a male intends to perform anal sex on his unexpecting partner and does so my Tom Foolery and leads his partner to beleive that the occurance of the unexpected anal sex penetration was merely the direct result of a result of cockslippage.
Howard couldn't wait to have a little bit of his girlfriend's Brown Eye so he pulled of a little Assnanigans and slipped out mid-stroke making Sonja squeal with delight.

Roger: Hey Carl. How was your date with Rhonda last night?
Carl: Oh it was good Brahhhh! I pulled some Assnanigans!
Roger: Sweet!
by Eaton Holgoode September 11, 2014
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