A person who eats out a hairy black woman; a person who performs oral sex on a nigger bitch with a hairy pussy; the act of cunnilingus with a hairy nigger.
Tom is a Gorilla Lawn Mower, he likes his bitches black and hairy.
or
Tom is going to start the Gorilla Lawn Mower, poor bastard is going to wish she shaved.
A situation where a brother and sister are engaged in a session of 69. At some point (sometimes unintentionally) both parties braces become entangled in the other party's pubic hair, leaving each member no choice but to forcefully detach each member's pubic hair while still entangled in their braces. hence; the name lawn mower. (see:Cincinnati Wool Teeth)
Named after Cincinnati, the location of the first documented case.
Mother: Brian now you and your sister have braces at the same time! How cute!
Friend: Yeah Fitz! How Cute!
Brian: Yeah, whats even cuter is the Cincinnati Lawn Mower we had after the orthodontist appointment.
When you and your sexual partner are outside in a grassy area doing it doggy style, and the female orgasms, planting her face in the grass and effectively cutting it with her teeth. Process repeats in a new area, and the riding lawn mower is in action.
After they did the Riding Lawn Mower for a few hours, Andy and Vanessa could finally play soccer together on the newly cut lawn.
The expression of which your ass is grass comes from if you hear this you better get out of town because you're likely to get shot hung or end up with your head on a stick
Idiot1: oh dude I am so dead Idiot2: yep that's quite a bit of a fender bender there
- idiot1 gets home-
Idiot1's roommate: heard you my moped just want you to know ass is grass and I'm the lawn mower
Idiot1:* shit himself*
And that my assholes is how the term:
Your ass is grass and I'm the lawn mower
Turned into: your ass is grass