look up any word, like plopping:
 
1.
when drinking beer, and you have an acid reflux or alittle throw up, but it's just foam. it's called a fomit, used in the same context as vomit, but it's just foam, nothing else
dude, don't fomit all over my shirt! i just got it yesterday.

he's got a little fomit on his chin, but he's cool.
by s. tom s. August 09, 2006
 
2.
The act of having sex with a woman while she is hunched over puking her guts out. Fomit is traditionally only performed in the doggie style position, but there have been reports of it being performed in other sexual positions.
My girlfiriend got too drunk tonight and wouldn't leave the toilet, so I decided that I was just going to fomit her right there, fuck it.
by blumpkins and dreams March 09, 2012
 
3.
The vomit so hard, that you continually fart while puking.
Guy 1: Dude, I think John is puking so hard he is shitting himself!
Guy 2: Yea, he is fomiting.
by Bill Tetely December 04, 2011
 
4.
The act of vomiting on someone or something while attempting to fornicate with said person or thing.
Everything was going fine until bob fomitted on his girls mom.
by fishpaw February 25, 2009