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To vom a lot; To engage in excess vomiting; or to vomit in large quantities--The word is most commonly used by itself to metaphorically represent a negative reaction to something that is "vom-worthy" or "vom-inducing" (i.e. sickening/nauseating)

Related word: Mega-loathe (original reference by the character Dr. Perry Cox featured on the television show "Scrubs")
{Upon seeing two people making out
intensely in public}

Vocal Reaction-Response: "Mega-vom."
by Farah Ahmad May 19, 2008
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