A fork of Rural Dictionary
the time of day when one has to take his/her daily dump. usually after eating some sort of Mexican food.
Wow, its already poo thirty for me. That doesnt usually happen until later.
Any time during the day or night when one's body makes a strong suggestion for the owner of said body to engage in the act of fecal excretion; especially via the Anus.
"Oh wow, I can feel it, it's almost poo-thirty", or, "What time is it?....it's almost poo-thirty".