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2.
A sorority girl who shares a toilet with another sorority girl in the sorority house. Toilet buddies tend to spend Tuesday nights together watching teen pregnancy shows and talking about douchebags who treat girls wrong. Toilet buddies look out for each other, especially when one of them is hugging the toilet, or "throne of enlightenment."
Hey "Toilet Buddy", we need to talk, I have boy problems, you know fisherman, frat daddies, etc.
by gretchdogg May 22, 2011
 
1.
A net that you hang inside your toilet to catch anything that falls out of your pockets (ex. wallet, credit card, spare change) while you "go".
"If I hadn't had my Toilet Buddy, my credit card would've been flushed!"
by Jefferist February 13, 2010