Top Definition
The act of Pwning a fellow League or team member.
Dude 1 - WTF we are on the same side
Dude 2 - Dude, I just ThunderGump'd you ass
Dude 1 - Oh, ok then. ThunderGump'n kinda fun
Dude 3 - We are /^A^\
by J-String Man February 24, 2010
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