A fork of Rural Dictionary
"Kuy" in Thai slang word is defined directly as a male's genitals. The word is rude and should only be used with close friends.
The word "Kuy" is often used in conversation as a remark/reply to someone else. Can be compared to the word "fuck you" or "ass".
Scott: Hey man, please don't ever scream, your voice sounds like a girl.
Jason: Kuy...
A kui is not afraid to jump into a relationship, but acts sort of shy at first. Once a kui gets to know you some, he might get a little freaky. Kui usually will have a low self-esteem, so be sure and boost his confidence a little, and also have fun; Kuis' are good in bed.
Kui: Sorry i was shy yesterday, i wont be tomorrow;).
Someone who is bad at sarcasm and cursing and commonly controdicts themselves.
Charlie: Luke, You kui-op to much.
Luke: What the f***?!
Charlie: Momentine Luke, Momentine.