BT
1) English telecommunications company who are like the Bell System, only they are lacking the intelligence.
2) Military abbreviation for Big Tits.
1) "Dude, let's go phuck up BT."
2) "Soldier, Your mission is to infiltrate the Playboy mansion, upon arrival at the LZ you will meet a colleague armed with BT."
by Soiled Undergarment August 13, 2003
BT
Military abbreviation (spoken "BT" or "Bravo Tango") for big tits.
Corporal Bohannon, BT, 12 O'clock, incoming.
by harry flashman July 10, 2003
BT
Acronym for: bad trip. Means something really bad happened. Originating from when you have a bad experience while hi on a drug.
Damn I just walked in on my roomate beating it... bt.
by huhnigga? December 10, 2004
bt
Big Time, Big Timer: success or successful. Rich, prosperous.
Pollo and Alpo were BT, real big time drug dealers in harlem.
by John Mendoza September 20, 2005
BT
Abbreviation for Boonton Township, a suburb in North Jersey full of woods and farms.
Its rough out here on the mean streets of BT.
by 12345 December 15, 2003
bt
AKA : Butthole Tickler

A mustache commonly seen on Navy men, policemen, Freddie Mercury. The use of the mustache is aimed toward anal tickling during gay oral sex.
"I swear Mike's BT has gotten so out of control, he could tickle his own butthole"
by Tonya and Steve February 12, 2008
bt
1.A three valved low brass instrument

2.stands for Bass Trumpet

3.An extremely awesome instrument

4.used in marching band instead of euphoniums
1.BT's are awesome

2.Check out thoose BTs.

3.BTs are extremely awesome

4.Check out that marching band they have seven BT's

by most_Awesome November 27, 2006
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