A creature that originates from the north east but moves down south for warmer weather and a reduction in pollution. They can be identified by having rabbit like hair, it is a peaceful animal but can get very agressive when agitated by magpies or black cats. It is best to avoid in the wild as they may be hungry and attack.
Look at that little cai over there, isn't it cute!
by graham north February 21, 2005
Top Definition
Cold Air Intake:

Cold Air Intake Systems let your engine breathe in large amounts of cooler air, resulting in increased power at the wheels. Cold air intakes enhance the combustion process of your engine, which uses both oxygen and fuel. Cold air intake systems pull in more cold air, more cold air means more oxygen resulting in more usable power and torque throughout the engine's RPM range. Most Cold Air Intake systems relocate the air filter outside of the engine compartment or away from the heat of the engine for a cooler intake charge. Cold air is denser and heavier than warm air, which means that there is more oxygen in a cold cubic foot of air delivering a higher volume of air into the engine. Replacing your vehicle's stock air box with a cold air induction system removes one of the biggest restrictions on your engine.
Joe added a CAI to his car so his engine will breathe and perform better.
by bobhussein April 13, 2005
a sexy son of a bitch
enormous penis
sex god
testicles hold gallons of spunk
always shagging
that dudes a right CAI!!!
by cai March 04, 2004
A sexy, amazing , caring, loving boyfriend
I love Cai! <3
by CaraBrookelle January 25, 2011
Chinese American International School: a smallish, independent bilingual school in SF- specifically the hayes valley. Kids there are smart and rich.
Person 1: where do you go to school?
Person 2:'s a blah blah blah (launches into explanation)
Person 1: so is everyone there chinese?
Person 2: no, only half of us.
Person 2: the other half of us are half asian or white people who decide to learn chinese.
Person 1: so you speak chinese?
Person 2: yeah. (to self: duh)
by xyzpseudonym2 November 02, 2010
Chinese American International School, a small bilingual school in San Francisco.

People who go there are known as the Rich CAIS Kids.
1. I go to CAIS.
by TOERTELLEHNI November 28, 2010
can't afford it
Guy 1: Can you afford a taxi? Guy 2: CAI
by lad6911 March 17, 2014
A cunt
Also has a very tiny penis
Girl 1: I had sex with this guy last night, but he had a tiny penis

Girl 2: Ah, must be a cai
by Y Geiriadurwr December 10, 2013

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