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8.
BTT
Stands for Beat The Train. Its a motivational consciencousness. Its about getting out of bed early enough to get your "Ride" on. For more info; Beatthetrain.com
Bike rides early Saturday mornings allowing people to prioritise their schedules. Now happening in Detroit but soon to take over the world! BTT can be whatever your motivation is. Free your mind about it!
by BTT Andy July 10, 2008
 
9.
BTT
Bright Tongue Thing - derived from Bright Young Thing. Having an interest in tongues of celebrities.
"She's obsessed with David Tennant's tongue"
"I know, she's like BTT"
by mooseymoo January 24, 2008