Top Definition
1. Peanut with three nuts instead of two
2. Um, i don't think three-balled humans exist, but you never know
3. Nickname that started with the FIRST definition
1. Bwahaha, i got a trinut in my lunch today!
2. Kick the groper in the trinut and move on.
3. Trinut just did something really random.
by miso December 05, 2003
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