Literally stands for Bare Back Twink. Used as a neutral adjective toward a homosexual who does not wear a condom during sex.
by Nothing/Interscope January 2, 2010

by not me not you April 6, 2009

by MEATYMIKE December 15, 2012

by mddddw April 28, 2009

by mjjj897 April 12, 2011
