Swack is ball sweat. Swack is the act of sweating under your ballsack area. Swack usually smells terrible and is not something that you would want to brag about in front of females. Occasionally it is funny to rub your hand on your swacking area then shove it in another friend's nose.
by Bruce Jigaweed June 19, 2008
Swack is ball sweat. Swack is the act of sweating under your ballsack area. Swack usually smells terrible and is not something that you would want to brag about in front of females. Occasionally it is funny to rub your hand on your swacking area then shove it in another friend's nose.
by Bruce Jigaweed June 18, 2008