When you're having sex with your sibling, cousin, or relative, and you pull out to cum on their back.
So I was fuckin' my saster, and I gave 'er a Alabama cumback.
When a guy jizzes in a girl and then she sits on his face
Oh man, I met this girl and she gave me a cumback
A racial slur for Mexican porn stars, usually female.
Juan's girlfriend, Juanita, is a huge tramp. Seriously, I've seen her in porn, she's such a cumback.
when you cum on someone’s back
Last night I had a cumback after a 5 month drought
When you are alone and blow your load, then force it back into your penis.
Cameron: "Bro I had to cumback yesterday my mom came home and almost saw me"
Tyler: "Did it hurt?"
John: "Fuck yea it did"
When you have sex and the next morning you cum from your asshole
Damn bro, I got a cumback
Damn fam, that sucks
When you ejaculate into a fan and it comes back.
I was jerking off and I accidentally hit a cumback.