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1.
A fight that takes place in a locker room or locker room bathroom between lacrosse or hockey teammates. Two or more people box each other while wearing their team helmet and gloves to determine the superior, fight for honor, glory and bragging rights.
1# Hey ass
2# How bout you shut up and we go locker boxing!
1# Fine lets go, after practice
2# Your on!
by Bob Lancer May 17, 2007
 
2.
Lockerboxing is unique to hockey. It usually takes place in the lockerroom after practices. Players often leave the bottom half of their pads (except their skates) on and take off their shoulder and elbow pads. The fight consists mostly of blows to the head.
Who's lockerboxing today?
by Patriots!!! November 15, 2010