spit up

spit up

1. To vomit. Said especially of infants, in whom regurgitation of milk is a common and natural reflex. Here, you'll want this cloth on your should in case Mary spits up on you. Our baby has been spitting up so much recently that we're beginning to get worried.
2. To expel something out of one's mouth by vomiting or coughing. In this usage, a noun or pronoun can be used between "spit" and "up." I slapped him on the back and he spat up the chicken bone. The cat always makes the same horrible noise whenever it's about to spit its dinner back up.
See also: spit, up
Farlex Dictionary of Idioms.

spit something up

Euph. to vomit something. she almost spit her dinner up. Sally was afraid she was going to spit up her dinner.
See also: spit, up

spit up

Euph. to vomit. The food was so bad, she was afraid she would spit up. Mommy, I have to spit up!
See also: spit, up
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

spit up

Vomit, as in Infants often spit up part of their milk.
See also: spit, up
The American Heritage® Dictionary of Idioms by Christine Ammer.

spit up

v.
1. To spit something out of the mouth: The boxer is spitting up blood.
2. To vomit something. Used chiefly of an infant: The child is still hungry because he spit his meal up. The baby spit up on her bib.
See also: spit, up
The American Heritage® Dictionary of Phrasal Verbs.
See also:
  • buicks
  • talk to Ralph on the big white (tele)phone
  • barf bag
  • cooky
  • talk to Huey on the big white (tele)phone
  • chow
  • hurl
  • hurling
  • drop (one's) cookies
  • drop one’s cookies