catback

An exhaust system that allows the exhaust gas to exit, while reducing back pressure. They use larger diameter
pipe than standard pipes.

"I just put catbacks on my Mustang, it's going to beast ass on all those civics and 'yotas out there."

by DKbikes November 14, 2007

cumback kid

it's the adjective when one ejaculates in hand and slaps it on others or own back

haha, you're a cumback kid!

ewwww...he just made you his cumback kid!

by tippit April 12, 2010

cumback

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 December 11, 2007

Catback

large tip to an exhaust to release pressure build up from the car's gas.

The new catback i got for my tC will rape the other guy's mustang who also defined catback

by tCDanny December 22, 2009

Cumback

A quick reply or retort where one distorts a seemingly normal conversation into a dirty one with a sexual partner or interest. The dirtier the better.

That’s what she said would be considered the most simple form of a cumback. Of course, the more unique and specific the response, the better.

Him: Hey wanna hang out?

Her: What time?

Him: I’m off work at 9.

Him: Lol I have a long meeting tomorrow so I’m probably gonna be drained around 9 or 10. Next week?

Him: I know something else that’ll be drained around 9 or 10... inches

Her: Ugh you’re right, let’s fuck!

Friend 1: You always gotta hittem with a cumback

Friend 2: Why’s that??

Friend 1: Because talking dirty and suggestive makes her think of you... sexually. She’ll be thinking of the dick! Plus it’s entertaining. For everyone involved.

Friend 2: Even with mediocre dick?

Friend 1: Even with mediocre dick.

by smerfyea August 17, 2019

Cumback

When u cum in her mouth and then she returns ur cum back through a kiss

- dude, she was trying to give me a cumback last night
- damn, that’s disgusting

by bugrymm April 16, 2020

Cumback

When a bitch isn't satisfied with the first fuck.

Virgina was so horny that she would not let me get out of bed till I gave her a CUMBACK to settle her down.

by Dr. Real Nasty January 10, 2023