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Dude in Spanish. Correct spelling is actually "buey" but sounds like "guey" or "way" so it's just changed a bit. Literally means "ox", and is a negative term like "fool" or "ni**a" but it's used as a term of endearment more like "dude".
"Orale, guey, traete las pinches cheves para ponernos bien pedos, cabron!" = "Right on dude, bring the fscking beers so we can get fscked up fool!"
guey by ::analogue:: March 26, 2004
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Guey means castrated bull. When someone calls you GUEY, he/she is calling you ball-less. That is why you do not referred to a female as guey. It does not mean DUDE. Although a lot of Mexicans now use the word as an everyday word people perceive as it being a slang for dude.
No seas guey,

No mames guey.
Pinche Guey
Ese Pinche Guey me la quito. "That ball-less dick took her away from me".
GUEY by FabulosoYo October 24, 2009
Please look at the prehistoric definition of the word guey. Its origin comes from the Nahuatl language "Uey", which means great. And this word is used when we refer to a friend, which there is also another word used by the aztecs "coalt", deformed by cuate which means friend in Mexico.
QUe onda guey, donde estan los cuates, esos gueyes siempre se tardan....
guey by fanny blauer August 10, 2008
The Mexican slang address “Güey” or "guey" always, with a smirk, means “cuckold,” which is the only word in English that labels the man whose woman cheats on him. In Mexican Spanish, a man’s unfaithful wife or girlfriend causes horns to grow upon his head, which only he cannot see. There the word connects with “Buey” or oxen, and serves as the root for the popular song “El Venado” about a man who grows horns. The word comes loaded with sexuality, always disparages, and always signifies low class aliterate personalities, and should always insult (as does the use of “Bitch” or “Niggar” in English) as a label. In Mexican Spanish, in direct opposition to the Mexican “Chingón” which signifies a heroic fornicator, or a type A personality, the overuse of the label “Guey” among the lower classes seeks to replicate the good-old-boys comraderie of the Mal Hablados, or potty mouths, of the ruling class.
Oye, Güey, dime que no supieste nada, pero nada, de que este guey utiliza tu mujer como todo la vecindad, guey.
guey by Mark Plimsoll August 13, 2006
texican slang for "dude" or also texican slang for a chubby friend who misses alot of work.
(in a high pitched voice) "nombre guey, can u bring me my check? im not going to work today. Chingado vato."
guey by fpendejo April 12, 2011
Look at the couple of guey's trying to sneak across the border
Guey by CARLEECOO December 18, 2018
A way to show excitement, confusion, closure, how funny something is. Also, a way to describe someone in some type of way.
Lord she was so fine! Guey
I don’t even know what is happening right now. Guey
You said what happened last night? SHEESH! Guey
Guey by Polyelos May 29, 2025