Their are many definitions to pepecaca.

1- When u peepee and caca in the toilette
2-A game played in class similar to the penis game(when u yell the name louder and louder with one of your buddies)
3-Curse word.
Person 1: dude, I had the best fucking pepecaca last night
person2: n0ice.. was it a clean poopie?
Person1: nah man i fucking wish
Person2: yeah.. i fucking love clean poopies(when u dont have to whipe)
person1:..pepecaca..
Person2:PEPECACA!
Person1: dude, u so pwned that 1.

Person: OMFG PEPE-FUCKING-CACA!!
by s0lidSake=M4ximum w00tage November 19, 2005
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