Top Definition
of, pertaining to, marked by facial reaction caused by consumption of something a consumer finds distasteful. It is completely reactionary and cannot be simulated effectively.
Example 1:

Andre: My favorite drink is Vodka and Red Bull.

Steve: Vodka is nasty, I can't even drink it without getting reaction face.

Example 2:
"Jorge is such a douche, watch how he gets reaction face every time he takes a shot."
by l20B0T March 18, 2009
5 Words related to reaction face

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