cai 

a sexy son of a bitch
enormous penis
sex god
testicles hold gallons of spunk
always shagging

that dudes a right CAI!!!

cai by cai March 4, 2004

Cai 

A very very shit footballer

They guy over there kicked the ball like a CAI

Cai by Mossco November 16, 2019

Cai 

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

Cai by Y Geiriadurwr December 10, 2013

Cai 

A "Cai" is someone with an unusually large penis, that likes to flex and express how big it is to their friends and/or family. A typical Cai's penis size is around 13 inches long, while a Kai is about 2 inches erect.

Chad: Hey, guys. Let's organize going swimming this weekend.
Phil: Yeah, sure! I'll invite Jules and Brad.
Chad: Don't invite Jules. He's such a "Cai"

Cai by Bigppwelshman October 28, 2020

Cai 

A kinky bastard who will get triggered if you tell him that. He is very nice but is into a lot of freaky things. He is an extroverted but case who is liked by a lot of people because everyone thinks he's ridiculously attractive. He makes bad puns that become infectious, this is how he charms his way into poor humour. He seems normal and nerdy at first but no...

I met this guy and thought he was alright but he turned out to be a Cai!

Cai by CallMeBubbles01234568987655432 January 30, 2018

CAI 

It's an acronym for Cry About It. Best used after someone has told a long story about how sad and miserable their life is.

Sad KID: oh my god! I'm so depressed right now, my girlfriend just broke up with me and my parents wont let me go to the Fall Out Boy concert. I hate my life!
Person: CAI

CAI by IhaveAnAwesomeHat April 24, 2007

cai 

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!

cai by graham north February 21, 2005