transitive verb

1. to hit or knock against with a jolt; collide lightly with
2. ☆ Slang to displace, as from a job or plane reservation
3. ☆ Slang to raise (a price, a bet in poker, etc.)

Etymology: echoic

intransitive verb

1. to collide with a jolt
2. to move with jerks or jolts

noun

1. a light blow or jolt
2. a swelling or lump, esp. one caused by a blow
3. in phrenology, any of the protuberances of the skull as interpreted with reference to one's mental faculties
4. ☆ Slang a thrusting movement forward of the lower part of the torso, as in striptease dancing