Signs of Blacktivity :- Nail-bars appearing on the High Street, along with 24 hour grocery stores that sell unidentifiable fruit and vegetables, Money Transfer shops that also sell cut-price calling cards to countries you've never heard of, and travel agencies offering flights to places you only hear about on the news after a civil war has erupted there. One may also notice their local Supermarket develops an 'Ethnic Foods' aisle, 20 Kilo bags of rice for less than the price of 1 Kilo of Uncle bens.
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.
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Tiffy: Timmy and I tried a whole new backtivity last night where all I could see was his sack and butthole bramble patch.