I searched for "mentula" and found a bunch of choice items:
http://64.233.167.104/search?q=cache:MjKHho0SKkQJ:www.insultmonger.com/swearing/latin.htm+Translation+Latin+mentula&hl=en&ie=UTF-8

I wonder if Jay Leno knows "leno" is "pimp" in Latin.

"mentula" to me suggested "little mind". You have to admit
it seems to have a mind of its own. Penis erectus conscientiam non habet.