1 definition by Vegas Flirt

To put ones testicals, taint and anus on someone or something. The next evolution of tea bagging someone.
Josh droped his pants and slamed his balls, taint and ass on Dans face. Dan got hit by a "Thunder Bag"!!!

The reason you have pink eye is because you were the victim of a "Thunder Bagging" rampage!!
by Vegas Flirt October 11, 2009
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