Doy vs. Duh: What's the Difference?

Doy and Duh Definitions
Doy
Disdainful indication that something is obvious; see duh.
Wow, he looks pretty angry. - Doy!
Duh
Used to express disdain for something deemed stupid or obvious, especially a self-evident remark.
Duh
Disdainful indication that something is obvious.
It's hot in the desert. - Well, duh!
Duh
Indication of mock stupidity.
Duhhh, I'm Jasmine, I can't even tie my shoe laces right!