Spit up (or past tense, spat up) is a small bit of puke, usually the size of a quarter, but very rarely bigger, that would be classified as vomit. Typically happens in vurps or in very light nausea stages.
by DoctorCaduceus February 13, 2021
The act of spitting out beer/liquor/other alcoholic beverages upon attempting to chug any amount of them.
by Wojo211 July 11, 2005
by What-the-hell-is-a-Pseudonym?? April 24, 2011