Usually the brother of a gamer or someone who doesn't get outside much, someone who goes to the neighborhood pool every single day it's open just to say they get outside more than you.
Steve: Dude, my brother's such a pooly. Kid goes to the pool every single day just so he can say he's gotten out more than me.
Joe: Yeah, I hate those mother fuckers.
In Anthony Burgess's novella, A Clockwork Orange, it's the "nadsat" slang version of saying you're sorry. Synonymous with "apologies" as in "my apologies".
Oh, did I step on your foot? Appy polly loggies, O my Brother!
Combines poly (from the Greek polus "much" and polloi "many") with bit (binary digit).
An alternative to the term non-binary gender which acknowledges that it is possible to count above two in binary so long as you use two or more bits. For instance with 2 bits you get 4 genders, 3 bits 8 genders, and 32 bits you get 4,294,967,296 genders. In general, with n bits there are two to the power of n possible genders.