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Ejection, escapement, or “missing the mark” of food/liquid entering or exiting the mouth, resulting in the food/liquid landing on the shirt of the gastronomic chevalier.
That lumpa shit eating over there just Newkirked himself!
by K.Shuffle January 22, 2013
To plan a night out with the boys and decide at the last minute not go, with little to no explanation. To newkirk
Bro 1: Yo, is Tristan going to make it to the poker game tonight?

Bro 2: No, he newkirked us.
by Th3 G0df@th3r March 21, 2013