Top Definition
A knockout punch.
"He hit that dude with a thunder cookie!
by armymech87 November 10, 2013

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to get knocked outcold in a fight or dropped.!!!!!!!
I hit that dude with a thundercookie!!!!
by jmanokc March 15, 2010

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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