bump(redirected from bump up)
Also found in: Dictionary, Thesaurus, Medical, Legal, Idioms.
Related to bump up: bump into, call for, at least, pump up
1. any of the natural protuberances of the human skull, said by phrenologists to indicate underlying faculties and character
2. a rising current of air that gives an aircraft a severe upward jolt
3. Rowing the act of bumping
4. Cricket bump ball a ball that bounces into the air after being hit directly into the ground by the batsman