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a cross between yes and yeah, commonly used by people with braces or a lisp
Billy: "Did you like that knuckle deep?"
Ashlie: "Oh....yeash!!!!"
yeash by Sarah Ritter June 23, 2007
Related Words
Yeash yeashfi yeashmal yeasha yeashaw yeashhhh yeashua Yash Yasha yashaswini
Middle English; Adjective.
Often used to pronounce feelings of explicit pleasure and triumph.
"Can I please fo'shizzle yo nizzle?"

"Ohhhhh yeash."
Yeash by Stuuuud June 16, 2004
A) That awesome quotation by Bison in the Street Fighter television series that is commonly embraced by the YouTube Poop community.

B) The best two seconds of your life.
This is delicious!!...Not until I see those Street Fighters pummel to dust, which should be any moment now. YEASH!!! YEASH!!! Epic music plays
yeash by M3TAL Y05H1 April 25, 2008
The way a terminally drunk person says yes or yeah
*argument about how long person 2 takes to respond to messages while drunk*

Person1: Next year isn't that long away now

Person 2:Oh yeash. I forgot
Yeash by TheElderDM December 13, 2017
See gay fag treehugger hippy boring
The Most Boring Teacher In Teh World You'll Wanna Shoot YourSelf After His Class Or Stab Yourself Repeadtly With A Blunt Knife/Spoon
#1 "Hey I Was Just In Yeash's Class"
#2"DAMN I'D HATE TO BE YOU"
#1 "Yeah I'm Gonna Go Stand In The
Middle Of The Freeway Now"
#2"Well Thats Cool Have Fun"
#1"Fuck You Too Buddy"
Yeash by Blu3t4rd October 19, 2004
YEASH- (v) to be forced to swallow slide oil, flute lube, valve oil, cork grease etc. because you told everyone who your friend likes
Aw man, Tom is going to yeash me for telling you that he likes you!
YEASH by EBbandgeek! March 27, 2009