Being filled with more penis than an anus or vagina can handle.

When you're being horny (especially around friends) and as a result shame ensues.

When you fuck up someones shit

a douchebag that lives on the internet, most notably the Sharethebrutality forum (stb) - lives on validating himself by being a cunt and claiming to be some kind of metal guru and being an uber elite "metalhead" douchebag.