Top Definition
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."
#catback #exhaust #pipes #cat #back #muffler
Por DKbikes 27 de octubre de 2007
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
#exhaust #tc #car #fast #vroom
Por tCDanny 22 de diciembre de 2009
Another term for Vagina, refering to intercourse.
Son- Man dad, I'm so bored.

Dad- Well get your ass out of the house and go get you some cat back.
#sex #intercourse #pussy #vagina #penetration
Por Marshal Clark 12 de marzo de 2008
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