look up any word, like plopping:
 
1.
Back that shit up
Hey baby, why don't you come over here and BTSU!
by Isla 800 July 15, 2010
 
2.
Blow That Sh*t Up my definition of having fun

"Yo brian lets go BTSU!!!'

"Yo brian lets go BTSU!!!"
by DaniPat June 14, 2007