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Definition of bum

bum

/bʌm/
bum

Plural:bums
•
Past Simple:bummed
•
Past Participle:bummed
•
Present Participle:bumming
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bum Lexical Profile

bum Game Scores & Validity

• noun

1

British The buttocks (used informally).

Example

"The toddler slipped on the icy pavement and landed squarely on his bum."


2

North American A person who avoids work and subsists by begging or depending on others; a vagrant or loafer.

Example

"After losing his job, he was terrified of being labeled a lazy bum by his judgmental relatives."


3

North American An enthusiast who devotes a great deal of time to a specified recreational activity, often neglecting conventional employment.

Example

"He spent his twenties living in a coastal van as a carefree surf bum."

Synonyms
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• verb

1

North American To obtain or ask for something from someone without paying or intending to return it; to cadge.

Example

"He tried to bum a ride home from his coworker after his car broke down."


2

North American To disappoint, depress, or upset someone (often used with 'out').

Example

"Canceling the weekend camping trip because of the rain really bummed everyone out."


3

To travel or spend time idly and without a fixed purpose or destination.

Example

"After graduating from college, they spent six months bumming around Europe with only a backpack."

Synonyms
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Antonyms
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• adjective

1

North American Of poor quality, defective, false, or disappointing.

Example

"The hiker had to turn back early because of a bum knee that flared up on the steep trail."

Synonyms
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Antonyms
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Word Nuance & Usage

In British and Commonwealth English, 'bum' primarily refers to the buttocks, whereas in American English it primarily denotes a vagrant, a lazy person, or something of poor quality.

• Rhymes for bum

Word Origin & Etymology

The anatomical sense dates back to Middle English (likely of imitative or dialectal origin for a protuberance), while the American sense meaning a vagrant or loafer emerged in the mid-19th century as a shortening of 'bummer', from German 'Bummler' (loafer).

Cite this Entry


Wordmom. (2026). Definition of Bum. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/bum
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