When someone takes a electric trimmer and uses it to shave a strip through another person's hair. E.g., what the Grinch does to the mayor with the electric trimmer.
by deadviserion December 2, 2017

Guy 1: Man, last night was so embarrassing.
Guy 2: What happened?
Guy 1: My girl was going down on me and as soon as she tugged my dick I farted.
Guy 2: Damn, sounds like she was Starting the Lawnmower.
Guy 2: What happened?
Guy 1: My girl was going down on me and as soon as she tugged my dick I farted.
Guy 2: Damn, sounds like she was Starting the Lawnmower.
by Dalexley April 2, 2021

The act of vigorously pulling out a large strand of anal beads from anothers butt hole. Similar to the quick jerking motion used to pull start a Lawnmower.
Nothing says "I'm revved up and ready for anal" better than starting the night off with a few pulls of The Stinky Lawnmower.
by Dr. Von Twatstein February 11, 2013

The act of engaging in Anal sex while reaching around and give them a good ole shave job in there pubic region.
Sad man: Man my wife wont shave her pussy
Happy man:Give her the old persian lawnmower
Sad man:time to get the bushhog
Happy man:Give her the old persian lawnmower
Sad man:time to get the bushhog
by yourwhalecum69 July 2, 2014

The act of performing cunnilingus with braces and simultaneously removing pubic hairs, one-by-one, by getting them stuck in the wires of said braces.
Dude, I gave my girlfriend's sister a Missouri lawnmower after I got my braces tightened at the orthodontist.
by DuckButterKing September 25, 2013

The act of performing vaginal sex on your partner while yanking a long string of anal beads from their rectum.
by omg i knew that? November 27, 2013

(verb)- to Shave someones back while having sexual intercourse with that being, weather alive or dead.
by a_man_with_no_arms September 27, 2006
