Doin' a girl from behind, flippin yo' sack over yo dick shaft and shovin a nut (or two) into the bitches ass whiist penetrating her vag with yo cock.
"I can't believe you pulled a butt nut stretch, man, that girl's like ten..." 
Q:Where is Carlos? A: probably giving that girl a butt nut strech.
Q:Where is Carlos? A: probably giving that girl a butt nut strech.
by Herpalous flotus April 21, 2008
Get the Butt Nut Stretchmug. if a girl bra is called over the shoulder bolder holder, then what is a boy's boxers called? under the butt nut hut?
by DeathByBuda December 19, 2011
Get the under the butt nut hutmug. "Jim was getting ready to run in a marathon so he put on his over the butt nut hut to keep his balls from being mashed".
by Ball Buster STL April 7, 2011
Get the Over the butt nut hutmug. Tighty Whities, BVD's... etc.
"all this running is makin my balls flop around!" awwww that sucks, shoulda got an Under-the-butt nut hut
by Kyle Tat June 21, 2008
Get the Under-the-butt Nut Hutmug. 
Get the butts to nutsmug. The girl got so wet you could find her on doppler radar, I had to keep dry in her under the butt nut hut...
by Von Dubz February 22, 2004
Get the under the butt nut hutmug. When a place is so packed or crowded with people that you are literally butt to nut while passing each other.
by addiesbubbe August 26, 2008
Get the butt to nutmug.