look up any word, like blumpkin:
 
1.
Australian slang;

vomiting, throwing up, etc. 2) bummed out. upset, regretful.
I missed the big day yesterday mate cause I had to go out with nana.

" aww yur spewin mate "
" shitchyea"
by herbie January 22, 2004
 
2.
The act of smoking Marijuana and getting completely baked.
While one is high, he is "spewin"
I'm spewin haaaard!!!!
by BBW! October 17, 2010
 
3.
physically uphurling due to the severe dislike of a person or object
'spewin off the facebook comment that munter just posted'
'spewin for that spanish test'
by LOGSSSS May 29, 2009