Makes a gagging sound or movement as if about to vomit, usually in response to something disgusting or unpleasant.
From Old English 'hrœccan' meaning to spit or hawk; the word evolved to describe the involuntary gagging reflex rather than intentional spitting.
Your gag reflex is actually a safety mechanism—it protects you from swallowing dangerous things, and interestingly, it's activated by the back of your throat but can be triggered by seeing something gross, making it partly psychological.
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