Hay 

1.misspelling of hey
2.short for how are you
3.The stuff that's in a cart that you jump into from a tower or something.

Jump into hay all the time after synchronizing a view point, it has nice vitamins and minerals.

Hay by GameGal101 May 9, 2009

Hay 

Marijuana that is old or has a lot of shake, or just some bap ass weed. At least thats how we say in Florida.

"Yo dont by trees from that nigga DaJuan, that nigga be servin that hay dog straight up."

Hay by WeedMan March 8, 2004

Hay 

A basterdization of the greeting, "Hey". Commonly used by /b/tards on 4chan.

"Hay guyz, what's going on!?"

Hay by Irne May 9, 2005

Hay 

A term used to describe someone who doesn't follow through with plans, or bails on them.

"I was supposed to hang out with Willie today but he bailed again. What do you expect, he's hay."

Hay by Donny Planet January 12, 2010

hay 

The intellegent, grammatically correct form of hru. stands for 'How Are You' used in internet conversations for literate people.

-Emma: Hey! Hay?

-Georgia: wtf is hay?

-Emma: Hay='How Are You?'

-Georgia: wtf...

hay by nerdlet4life April 21, 2010

hay 

that funky green plant all the kids are smoking nowadays

smokin' on haaaayyyy in the middle of the bar..... - crucial conflict

hay by King Nicky July 16, 2003

hay 

The retarded way of saying "Hey" in conversation. Mostly used over the internet because the person is a complete dumbass and can't spell "Hey", or they're just being sarcastic and making fun of those dumbasses.

Dumb Person: HAY GUYS!
Normal Person: Shut the fuck up.

hay by AuntieTATA September 17, 2005