Kind of means "Wasn't that obvious, huh?"

similar to duh
You have to turn the Computer on first, Doy!
by Joshtek September 1, 2003
Another way of saying "no kidding", "no shit sherlock".

Pointing out that something said by another was painfully obvious

Originated in the mid 1970's and used primarily by females known as "valley girls"

often followed by the word "now"
jodi: hey, did ya know that elephants are big and grey?
jill: doy!

Jodi: ice cream is cold
Jill: doy now!
by Tenarr June 26, 2005
A word to use to to call someone a name. A word that can be used freely by many people.
Eric, why did u stick ur finger in the chinese finger trap.

Because I’m a dumb doy!
by willguh December 12, 2021
Stands for good golly are you slow. Also it too can mean the same as duh....DOY is just way cooler to say...fo sho
Did you go to school today?
Doy Carl, you only saw me.
by jessica March 31, 2004
Person 1: Wow, u and Fred are going to prom?
Person 2: Yup.
Person 1: So u two are like, together?
Person 2: Doy!
by iLoVeThE80s7498 August 6, 2010
A word to use to to call someone a name. A word that can be used freely by many people.
Eric, why did u stick ur finger in the chinese finger trap.

Because I’m a dumb doy!
by willguh December 12, 2021
a war cry used by the afro-karateka warchiefs of north america in the early 1970s. it increases the power and precision of their attacks and also features as a startling tactic due to its incredibly odd sound.
attacker: "he's not goin' to hawaii!"
afro-karateka: "doy! doy! d-d-d-d-doyyyy!
by Nickobrevin May 11, 2006