Is the sacrastic version of the word "yeah".
Person 1: "I'm am so going to beat you!"
Person 2: "Jyeah!"
by JamieA January 11, 2008
Top Definition
A super-cool version of yeah, used in super-cool situations. Also, an exclamation when ultimate orgasmic happiness is reached.
Roddy: Dude, I just totally boned the captain of the cheerleading squad!!

Josh: Aww jyeah!

Both: JYEEEEAAAH!!!!!!
by Josh September 22, 2003
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