DCHP-1 Online
hooky ((2)) 2 hookey [< hook, v.] Lab. 
n. a brittle crust that forms on snow, such that the foot sinks through it causing a person to trip.
- 1933 Another kind of crust [on the snow] is brittle. It trips you every step. The men call it "hookey."
- 1933 Another kind of crust [on the snow] is brittle. It trips you every step. The men call it "hookey."