Big tits on campus. It occurs when a girl has tits large enough to be noticeable from far away.
Damn dude, Isabel has to be the new BTOC.
by Poonraider117 September 21, 2010
1 more definition
Best Teacher on Campus/Buffest Teacher on Campus
MR. Green is a BTOC because he is so cool.
by Jay Q. April 16, 2008