by Sassybiach123456 December 23, 2019
A pair of tidy whities, stretched up and over the shoulders, arms coming out where the legs usually go.
Dumbass, wtf with the montana butt floss?!? Are you trying to figure out the ultimate wedgie? Or did you just have a bongload of salvia?
by ratstalker March 29, 2013
The act of which would occure if two creepy, perverted high school students got a hold of a females scarf. The scarf would be straddled by both of the perverts, one holding each end with one hand, then flossing their rectums with the scarf whilst thrusting/dry humping eachother.
Helpless school girl: (bends over)
Saint G: (steals scarf from locker)
Marin: (straddles scarf with Saint G)
Helpless school girl: What the fuck are you doing?
Saint G: what does it look like?
Marin: we are performing the fine art of double-butt-floss
Helpless school girl: well there goes that scarf....
Saint G: (steals scarf from locker)
Marin: (straddles scarf with Saint G)
Helpless school girl: What the fuck are you doing?
Saint G: what does it look like?
Marin: we are performing the fine art of double-butt-floss
Helpless school girl: well there goes that scarf....
by Saint G March 13, 2008
by Killerpika8 October 6, 2019