Chuy is actually a nickname for people with the name Jesus, (J is pronounced as an H.)
The nickname is most commonly used Mexicans and Naturalized Mexican Americans. It is commonly used by Mexicans and 1st generation Mexican Americans. It is less commonly used by 2nd generation and later Mexican-Americans and Americans of Mexican descent.
Some 1st gen., 2nd gen., and later Mexican Americans, and Americans of Mexican descent use Chuy more as a stereo-typical nickname for our 1st gen and naturalized Mexican friends who are now living in America. It's used as a way of being funny and friendly. Although the person receiving the name may or may not think it's funny. Regardless, it's harmless, especially for jokers.
Used for men.
The joker version of Chuey for girls is Concha.
1st & 2nd gen Mexican, English speaking version: Hey Chuy, what's crackin'?
Joker example: What's up Chuy Chew?
Due to stoners' tendency to pile, even in grammar, the word was soon-after transformed to its current state of chuy.
chuy can be a verb or adjective... or chuy
Nice, man. That's chuy.
Hey, I just got some 40's and weed. Let's chuy!
Bro, The Notebook was definitely not chuy.
Hey, what up, chuy-guy?