Top definition
1. to get peer pressured into doing things you don't want to do while in a treehouse with your friends.

2. To hang out with really cool people.

3. when your you are having so much fun while hanging out that your friend poops their pants
1. wanna hangoopy? no thats ok. cmon you got to. fineeeee
2. i love to hangoopy
3. eeeeewwww you hangoopied! lololololololol bffl lmfao
by jar jar binxer April 03, 2010
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