look up any word, like mexican microwave:
 
1.
Shivaash is a term used to describe someone who is exhaustingly annoying. You can also use the term to describe someone who is egoistical. It is mainly used in the oceanic region of the world.
Person 1: Hey, I'm just the best at everything.

Person 2: Yo, don't be such a shivaash
by thefalconator July 21, 2014