2
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!!!!"
by Sarah Ritter June 02, 2007
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3
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
by M3TAL Y05H1 April 25, 2008
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4
Middle English; Adjective.
Often used to pronounce feelings of explicit pleasure and triumph.
"Can I please fo'shizzle yo nizzle?"

"Ohhhhh yeash."
by Stuuuud June 16, 2004
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5
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"
by Blu3t4rd October 19, 2004
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6
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
by TheElderDM December 13, 2017
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7
Mix if yes and yeah which is usually yesh, but yeash sounds cooler and more unique.
Eyyyy KJ you going to that party today? Hell Yeash.
by Ghetto af July 25, 2016
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