Top Definition
1. rule or domination by a the person with the largest penis.

2. a political system, state, etc. dominated by the person with the largest penis.

3. a way of determining order by the size of the penis of the participants.
Allan: So, who gets to go first ?
Bob: Definitely me, by right of penisism.
Allan: Huh ?
Bob: My penis is way bigger than yours Allan.
Allan: ...
by Ragnarok7000 October 29, 2009
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.