A Peniser is a chronic and dedicated Masturbator. Most Penisers penis their penis for hours at a time and are very proud of being Masturbators.

The act of extreme masturbation. You must "knock one out" whilst in close proximity to any of the following; Your mum, a nun, your boss, a member of parliament, George Michael. A person with capabilities to act upon catching you mid self-abuse obvisouly ups the ante. Ejaculation must be reached before your danger wank target comes (no pun intended) to investigate. The higher the chances of being discovered with one's pants down, pulling one's war face is obviously where the danger comes from. The more danger involved the harder (or softer) it is to complete the task in hand (snigger). The more dangerous the better. The chance of being arrested, pummeled by an angry father or having your hand severed by an arab's sabre means that you are a pro "Danger wanker."

To have a bigger penis than another

(Noun) someone who does annoying things to people with his penis quite often.

To keep sexual intercourse to its most basic terms the peniser is the "enterer" in the coital relationship. Can be used to describe a man in heterosexual sex, "the man" in homosexual buggery and the dildo weilding lesbian. All are covered by this term. The receptical of the peniser is is it's antonym the penisee.