Catback
noun ·Rare ·Advanced level
Definitions
- 1 The totality of components which exhaust gases flow through after exiting a vehicle's catalytic converter. uncountable
"Corsa Xtreme Catback Exhaust"
- 2 The back of a cat (for riding upon). uncountable, usually, with-on
"Aun Yom's attack [on the lokopede] would require storming the carriage cars but only after sending in some leg breakers on catback. A well-aimed strike from their sweeper scythes should be able to take out a dozen legs at once."
Example
More examples"The downpipes bolt up to the APS off-road mid-pipes with copper RTV providing a seal on the flanges. Since there is no high-flow cat option, Howard says he plants to weld up a set of cats as he doesn't take kindly to the funky exhaust smell or lack of emissions compliance. Tanner also elected to stick with his B&B FUSION catback rather than the raunchier APS piece. The FUSION system retains the valving design used on the factory Z06 mufflers. This enables noise when you want and a civilized ride when you don't!"
Etymology
From cat + back, sense 2 (the back of a cat, for riding upon) is modelled on horseback.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.