2 definitions by Michelleio/Meech/SAVAGE

Top Definition
Optimus Prime Pooping Time. This is when you feel a great poop coming on. You're in a great location for the poop, and you can tell that it's going to be a good, clean poop.
Michelle: When are you coming over?

Dillon: After my OPPT!

Michelle: Sounds great, see you then!
by Michelleio/Meech/SAVAGE February 22, 2011
Mega Tron Poop is Gone. This is a very bad, unwanted poop. It usually occurs after too much oatmeal. It usually consists of the runs, which is always unpleasant. It can also be used if you get a poop at the wrong time.
Michelle: Why are you making that face?

Dillon: Sorry, MTPG

Michelle: Oh geez, I'm sorry.
by Michelleio/Meech/SAVAGE February 22, 2011

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