When you fart and the smell hits only you.

when 2 or more guys do a girl and 1 may accidently choad on another...

to cum on your self by mistake is known as friendly fire.

To be able to hurt or attempt to hurt someone/thing without taking blame.

When your whore girlfriend is sucking you off and and you say your gonna cum and she points your dick directly at your face or upper body and you cum shot yourself. This can also happen during masturbation, hand job or sex.

when a close female friend (strictly friends) that have never done anything sexually, gives you head, or blows u off but there are no feelings attached before or after .. Just a nice friendly gesture

A small campfire to roast weiners and marshmallows on a stick. Yummy!