1 definition by Boxerman

The movement of one's boxers when a male is getting an erection. The penis will shift slightly before erecting, casing a motion on the outside of the underwear.

This can occur in briefs and jocks to a lesser extent, however it is boxers that are most noticable, since there is much more room for the penis to move.
During a sleep over Bob noticed James had a boxer wiggle during their conversation about girls. He smirked as he watched James try to casualy conceal his growing erection by covering himself with his sleeping bag.
by Boxerman August 3, 2009
Get the Boxer Wiggle mug.