grab-ass1
/ˈɡrabas/North American slang (originally US Military )
noun
Foolish or disruptive behaviour; horseplay. Frequently in to play grab ass: to engage in horseplay, to fool around. In later use sometimes with sexual connotations.
Origin
1940s. From grab + ass. Compare grab.
grab-ass2
/ˈɡrabas/North American slang (originally Military )
verb
[no object] To engage in horseplay; to fool around.
Origin
1950s. From grab-ass. Compare earlier to play grab ass.