Top Definition
back·ti·vi·ty \bak-'ti-vi-tē\ n, pl -ties (2011) 1: The quality or state of being sexually active/experimental with a view from the rear. 2: Vigorous or energetic action from the rear. 3: A similar process actually or potentially involving sexual function from behind. 4: An educational procedure designed to stimulate sexually (specific: Anal, Doggy, Reverse Cowgirl, blowing your load on her ass/back).
Timmy: Last night, Tiffy and I got into some crazy new stuff we'd never done before. One was like the piledriver only she was staring right up at my nuts and asshole.

Mikey: Yeah? Sounds awesome. Good thing you made those bunk beds. Now you have so much more room for backtivities.


Tiffy: Timmy and I tried a whole new backtivity last night where all I could see was his sack and butthole bramble patch.

Daisy: Was it any good?

Tiffy: It was definitely better than looking at his ugly schmuck mug.
by tandem double frogman April 07, 2011

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.