Similar to puss, only spelled correctly and definitions with good grammar.

1) Mucousy substance in your blisters, coming out your wounds; 2) Short for pussy; 3) Anything disagreeable or lame, the opposite of sup.

Verb, to give someone a sexually transmitted disease.

The liquidy excrement caused by the consumption of "gu" energy gels before and during an endurance event. pu can be found in toilets but definitive pu is seen running down the legs of long distance runners along marathon or iron man routes.

Pu is not to be confused with "the runs", aka regular diarhea, that have no direct affiliation with the act of actual running.

PU means pop up, people often use this on sites such and Instagram and snapchat as a way of saying somebody message me

gross crap