1. a funny name to call your teachers.
2. (edible) nuts that are colored rainbow.
2. ballsacks that are rainbow colored.
4. a kneeslapping inside joke to share with your friends.
1. Mr./Mrs._______ is a Rainbow Nut!!!

2. Those Rainbow Nuts are yummy.

3. Have you seen that man's Rainbow Nuts?

4. Would you like to be my Rainbow Nut?
by rachelquifferpants April 20, 2008
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the act of getting a blowjob while making a peanut butter sandwich
Well i got home from raisins the gay hooters and i was craving a peanut butter ad jelly sandwich. Well i maid henrietta was having a very fine looking onsomble on. She came up and honeslty i had the biggest and most crooked backboard of a boner ever and i just couldnt wait to get to the den and she just gave me a rainbow nut crunch.............
by penis monser June 29, 2010
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