Hop1  —v. (-pp-) 1 (of a bird, frog, etc.) Spring with two or all feet at once. 2 (of a person) jump on one foot. 3 move or go quickly (hopped over the fence). 4 cross (a ditch etc.) By hopping. —n. 1 hopping movement. 2 colloq. Informal dance. 3 short journey, esp. A flight.  hop in (or out) colloq. Get into (or out of) a car etc. Hop it slang go away. On the hop colloq. Unprepared (caught on the hop). [old english]