Green’s Dictionary of Slang

(US) cheated.

2002		Margie Levitt at www.jewishtorontoonline.net 🌐 I commented on how stylish her pants were. She explained that she had bought them on Spadina and was sure she had been ‘hymied’.
2005		J. Stahl I, Fatty 84: Your final exam was getting hymied after a nine-show-a-day run in Bakersfield.