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A word developed on Long Island, New York (Copiague/Amityville area)in the mid 90's, used as an answer, or comeback to a question with a confusing, personal, or surprising answer... when the asker didn't really want to know the answer in the first place
David: That girl wanted me to tell you something..
Jason: What?
David: ERSHH!

Mary:We have off from school tomarrow.
Alexis: Really, why?
Mary: Ersh!
Ersh by Phoenix Nora February 6, 2009
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Background: Ak-Chin Indian Community and Maricopa, AZ. Definition: stupid, or retarded. Not agreeing with. To put down after someone makes a suggestion or comment.
Juan: Damn that girl is hot!!
Eric: Ersh, she's not.

or,

Ed: Damn I look good after working out.
Jer: Ersh. . . . No you don't!!
Ersh by Big Lare January 6, 2005
Related Words
A term used to add emphasize approval or disapproval of something. Can be said quickly to express excitement, or slowly to express displeasure.
James: "Hey Derek, wanna catch a shitflick, then hit the Pink Pony?"
Derek: "ERSH! You bet the fuck I do James!"

- - - - - - - -

Derek: "Damn, what is that smell?"
Danya: "I just dropped a deuce in your bathroom"
Derek: "You asshole...errrshhhhh!"
Ersh by Webster March 31, 2003
what you use when you have nothing better to say; a way of cutting people off; a nice way of saying "shit the fuck up!"
1. phill: arlette, what is going on in the movie?
arlette: PHILL, CAN YOU FUCKING ERSH!
ersh by sarah, stela, and arlette November 13, 2006
A word developed in Buffalo, Ny during the 1980’s that can be used in place of the name Trish.
Yo dawg, What’s an Ersh? This is my aunt Ersh. Her real name is Trish.
Ersh by PseudoBobby July 30, 2025

ersh megersh 

Humorous slang that can be used in place of "ew", "gross", "nasty", etc. Similarly, "ersh" or "ershy" can also be substituted to display disgust or displeasure with a person, object, idea, smell, etc.
Girl 1 "Did you see the new substitute teacher we're getting for tomorrow?"
Girl 2 "Yeah, he looks pretty ersh megersh... I wonder if he bathes...He looks pretty creepy too. Hopefully he doesn't hit on the girls in class."

Guy, "That's your boyfriend!"
Girl, "Ersh, whatever! That's sick!"
ersh megersh by xHellgirlx April 14, 2010

ersh limp 

1. Something Hunter Thompson says occasionally.
2. A word without meaning.
3. What you say when you have nothing else to say
4. cool.
ersh limp by PaulJar the Pornostar November 18, 2003