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2.
Stealing a girl from a group of guys or from her boyfriend.
"Dang man, your game is so tight. You were smoking balls tonight."
by OsirisPUA January 17, 2010
 
1.
An adjective meaning something is seriously awesome with conotations of originality
Cockboy: Did you see Earl's new diamond studded cape with matching hat?

Din Viesel: Hell yeah, that dude is smokin' balls!

-or-

Twinkman: Your new whip is smoking balls!

by Extra Sauce October 21, 2008
 
3.
To do something outrageous
Jimmy flipped three thousand times in one jump, he was really smoking balls.
by Ready-Liver July 05, 2009