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12.
To wipe your cum off someones chin, or other body part
Bitch if i wanted a cum back I would wipe it off your chin.
by Jake Wright February 15, 2007
 
1.
Blowing your load all over her back. Usually when doing it doggy style.
by M.R. July 13, 2003
 
2.
After a woman gives a man oral, she doesn't spit or swallow-- she proceeds to kiss the man and give him his cum back.
"Dude after Stacy blew me, she gave me a cumback-- I didn't know it was that salty!"
by JuJuLaylayRiRi April 02, 2009
 
3.
When a washed up celebrity is made temporarily famous again by their participation in an "accidentally leaked" sex tape.
Did you see Dustin Diamond's three-way? He's gonna have a major cumback this week.
by skomand November 16, 2007
 
4.
The act of ejaculating on your mates back after she has been unsuccessfully blowing you and begins to walk away while you quickly beat it and finish on her back.
Dorothy: "How was you night Inexperienced female friend?"
Inexperienced Female Friend: "Well I gave up and was about to leave him high and dry, but he made a nice Cum Back. I thought the game was over, but that buzzer beater took me by surprise."

Dave: "I was railing some bitch last night. She finished first, said thats it and began to walk out. I was so pissed i jerked it myself and made a quick Cum Back as she was leaving. Hope her dad finds it.
by takeawalksir January 21, 2014
 
5.
When a washed up celebrity is made famous again by their participation in an "accidentally leaked" sex video
Did you see Dustin Diamond's three-way? He's gonna have a major cumback this week.
by skomand November 14, 2007
 
6.
A mexican whore
Eva Mendes is such a cumback, she's always getting naked in her filims!
by Wetback101 February 08, 2011
 
7.
When you're wanking over porn and about to cum and your mum walks in and you have to hold it in.
*Tom cums on the wall*

toms hot mom: Tom why didn't you have a cumback?
by scarredshadow March 08, 2008