bum

1 of 6

noun (1)

: buttocks
fell down on his bum

bum

2 of 6

adjective

1
a
: of poor quality or nature
bum advice
b
: not valid or deserved
writing a bum check
c
: not pleasant or enjoyable
a bum trip
2
: affected or disabled by damage or injury
has a bum knee

bum

3 of 6

verb (1)

bummed; bumming

intransitive verb

1
: loaf
bummed around the house all day
2
: to spend time unemployed and often wandering
often used with around
spent a couple of months bumming around Mexico

transitive verb

: to obtain by asking or begging : cadge
bum a cigarette

bum

4 of 6

noun (2)

plural bums
1
informal + disapproving : someone who lives off others and avoids work : sponge
He's a lazy bum.
2
: someone who performs a function poorly
The fans called the umpire a bum.
3
: someone whose time is devoted to a recreational activity
a beach bum
ski bums
4
informal + usually disparaging : a person who has no established residence and wanders from place to place without lawful or visible means of support
bums sleeping on park benches

bum

5 of 6

noun (3)

: a drinking spree : bender
a 2-day bum

bum

6 of 6

verb (2)

bummed; bumming; bums

transitive verb

US, informal
: disappoint, depress
usually used with out
The news really bummed me out.
Phrases
on the bum
: with no settled residence or means of support

Examples of bum in a Sentence

Noun (1) I decided to get off my bum and get some exercise Adjective that was bum advice that you got from that website Verb (1) spent most of the summer just bumming around the house Noun (2) if you expect an allowance, you have to do some chores and stop being such a bum I feel sorry for bums and occasionally give them money
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
This was all done with a bum wrist, which posed as an inconvenience to him at times. Hannah Kirby, Journal Sentinel, 4 Aug. 2024 Tommy, left to prosecute the case against Rusty, has inherited a bum gig. Vinson Cunningham, The New Yorker, 26 July 2024
Verb
From the Yankees’ point of view, Aaron Judge went from hero to superhero to bum all within five innings. Los Angeles Times, 2 Nov. 2024 Sorry to bum you out, but that’s not gonna happen anymore. Nate Jones, Vulture, 9 Nov. 2024 See all Example Sentences for bum 

Word History

Etymology

Noun (1)

Middle English bom

Adjective

perhaps from bum entry 4

Verb (1)

probably back-formation from bummer entry 1

Noun (2)

probably short for bummer entry 1

Noun (3)

perhaps from bum entry 3

Verb (2)

probably back-formation from bummer entry 2

First Known Use

Noun (1)

14th century, in the meaning defined above

Adjective

1878, in the meaning defined at sense 1a

Verb (1)

1863, in the meaning defined at intransitive sense 1

Noun (2)

1864, in the meaning defined at sense 1

Noun (3)

1863, in the meaning defined above

Verb (2)

1970, in the meaning defined above

Time Traveler
The first known use of bum was in the 14th century

Dictionary Entries Near bum

Cite this Entry

“Bum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bum. Accessed 28 Nov. 2024.

Kids Definition

bum

1 of 5 noun

bum

2 of 5 adjective
1
a
: inferior sense 3, worthless
bum advice
b
: not true or deserved
a bum rap
c
: not enjoyable
a bum trip
2
: unable to work properly : disabled
a bum knee

bum

3 of 5 verb
bummed; bumming
1
: to wander around avoiding work
2
: to obtain by asking or begging
bum a ride

bum

4 of 5 noun
1
: a person who avoids work and tries to live off others
2

bum

5 of 5 verb
informal
: sadden
usually used with out
the news really bummed me out
Etymology

Noun

Middle English bom

Adjective

perhaps from 4bum

Verb

probably from bummer "one who avoids work"

Noun

probably short for bummer "one who avoids work," probably from German Bummler "loafer"

Verb

probably from bummer

More from Merriam-Webster on bum

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!