Definitions by fist_of_justice

BTT 

stands for Bikini Training Time. The period before the summer when women try to diet and slim down so they look good in their bikinis.

Allison had put on a lot of weight during the winter, so she had to do some BTT.

I can't eat those chocolates. It's BTT!

BTT by fist_of_justice April 14, 2009