To vomit inside one's mouth, leaving a burning feeling, but never exiting the mouth.
Oh my gosh, Suzie just momited and her breath has stunk ever since.
by Daniel, Courtney, Kara, Kayla November 07, 2006
Refers to a person who vomits up milk...or specifically curdled milk
what is this white stuff all over the baby's shirt? 'Oh it must be momit'!!
by caleeb August 11, 2013