look up any word, like spook:

1 definition by ATmegaNeRd

 
1.
One who vomits upon seeing, hearing, and/or, smelling someone else vomit despite any physical ailment.
When Jane threw up at the dinner table we immediately found out Bob was a sympathy spewer because he proceeded to vomit as well.
by ATmegaNeRd May 16, 2009