1. n. A blow job.
2. n. The first word of the phrase, "mop" is an acronym, literally standing for "mouth on penis." Thus, the most accurate definition of a mop job is a job involving the putting of one's mouth on another's penis, allowing for situations other then blowjob's exclusively; i.e., the job of sucking poison out of a snake bite on another's penis.
3. n. A job involving cleaning a floor using a mop.
1. "Dude! This chick bit my penis while giving me a mop job the other day! Now I have a sweet scar!"

2. "Timmy! Give me a mop job quick! This King Cobra just poisoned my pud!"

3. "I hate being a janitor. All I do is give mop jobs all day."
by Captain Hot Pocket December 4, 2008
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"I could really use a mop job on the ol' piss pump"
by COBHC886 May 9, 2007
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When you're getting a blowjob, she throws up cause of choking on the big dong, and mops it up afterwards.
"Dude I got such a good Mop Job last night, she sucked and cleaned so well. I'm asking her out again."
by Phallus trio October 16, 2020
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Swallowing semen at the end of a blow job.

The term originated on the LOGO Show, Rick & Steve.
Here's the official story of the Michigan Mop Job. Originally the line was "Plus I'll swallow because I don't have anything to lose." But Standards & Practices wouldn't approve it to air. In fact, they wouldn't allow ANY known euphemism for a sex act involving semen eating .

So I had to come up with a fake sex act that didn't mean anything. And that was actually tougher than you'd think. It seemed every word actually meant something: seattle sock job, blowfishing, cottage cheesing, california car wash... it was all taken. Finally I went with Chuck's moustache for the inspiration of a "mop job" and added Michigan to make it sound nastier, and it didn't show up in Google, so it was safe.

In short it's not actual act, but if it were, it would probably involve a moustache and eating ejaculate.
Source(s):
http://community.happiestgaycouple.com/0...
by IndyQueer February 27, 2009
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1. A blowjob from someone with a mustache who subsequently swallows the ejaculate.
2. When a mustachioed person ejaculates on someone and then eats the cum off.
I'm the only one who's willing to give you a Michigan mop job.
by yrmenlaf January 2, 2009
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When a guy is banging a bitch, he first shits on the floor. Then cums in her hair. Then flips her upside down and wipes the shit off the floor with her hair. After this is done, she rings the shit and cum out her hair onto the guys dick and gives him a blowjob
Im going to give your mom the dirty mop job of her life after I eat 6 bowls of chili.
by the mastermindz March 7, 2007
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Indeterminate thing that the character Chuck from "Rick and Steve" is willing to do only because he has AIDS. Most likely it has nothing to do with a mop but may involve a moustache.
"I can do a Michigan Mop Job, because I have nothing to lose."
by Doctor Suppan August 25, 2007
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