- a person who avoids work and sponges on others; loafer; idler.
- a tramp, hobo, or derelict.
- an enthusiast of a specific sport or recreational activity, especially one who gives it priority over work, family life, etc.: a ski bum; a tennis bum.
- an incompetent person.
- a drunken orgy; debauch.
- to borrow without expectation of returning; get for nothing; cadge: He's always bumming cigarettes from me.
- to ruin or spoil: The weather bummed our whole weekend.
- to sponge on others for a living; lead an idle or dissolute life.
- to live as a hobo.
- of poor, wretched, or miserable quality; unsatisfactory: I figured $300 was a bum deal for a minor repair, but I paid it anyway.
- fraudulent or fake: He was accused of issuing a bum check for $2920.
- disappointing; unpleasant.
- erroneous or ill-advised; misleading: I think the gauge is giving me a bum readout.
- physically disabled, impaired, or injured: a bum leg.
- to travel, wander, or spend one's time aimlessly: We bummed around for a couple of hours after work.
- to disappoint, upset, or annoy: It really bummed me out that she could have helped and didn't.
- on the bum, Informal.
- living or traveling as or in a manner suggesting that of a hobo or tramp.
- in a state of disrepair or disorder: The oven is on the bum again.
- the buttocks; rump.
- the buttocks or anus
- a disreputable loafer or idler
- a tramp; hobo
- an irresponsible, unpleasant, or mean person
- a person who spends a great deal of time on a specified sport
- on the bum
- living as a loafer or vagrant
- out of repair; broken
- to get by begging; cadge
- to live by begging or as a vagrant or loafer
- to spend time to no good purpose; loaf; idle
- to disappoint, annoy, or upset someone
- of poor quality; useless
- wrong or inappropriate