📖 Definition & Meaning
Bum (noun, informal) /bʌm/
- Buttocks or rear end (chiefly British and Australian).
- A lazy person or vagrant (slang).
🧠 Simple Explanation
Bum commonly means your bottom. In British English, “sit on your bum” means sit on your backside. It can also mean a lazy person or someone who begs.
🛠️ Grammatical Formation
- Part of speech: Noun
- Plural: bums
- Usage:
- Physical: “He fell flat on his bum.”
- Informal person: “Don’t be a lazy bum.”
⚖️ Word Comparisons
| Term | Meaning |
|---|---|
| Bum | Informal for buttocks; also a vagrant or lazy person |
| Butt | Informal U.S. for buttocks |
| Bottom | Neutral term for rear end |
| Arse | Crude British term for buttocks |
| Vagabond | Person without a home (similar to “bum” vagrant usage) |
🔁 Synonyms
butt, bottom, backside, rear end, arse (UK), lazybones (for person sense)
🚫 Antonyms
front, chest, industrious person, homeowner
🔗 Related Terms
buttocks, behind, bum cheek, bum rap, bum around, bum out
🔀 Changes in Meaning with Prepositions
- on your bum: “She sat on her bum watching TV.”
- bum around: “They bum around the house all day.”
- bum out: “That news really bummed me out.”
- bum rap: “He got a bum rap at work.”
📌 Common Collocations
- sit on your bum
- lazy bum
- bum around
- bum rap
- bum shoulder (injury)
💬 Sample Sentences
- After the spill, he landed square on his bum.
- Stop being a lazy bum and get to work!
- We spent the afternoon bumming around the park.
- He thinks he’s innocent, but he got a bum rap at the meeting.
- Don’t let one setback bum you out.
🗣️ Idiomatic & Figurative Usage
- “Lazy bum” – a person who is idle.
- “Bum around” – to loaf or dawdle.
- “Get a bum rap” – be unfairly blamed.
- “Bum’s rush” – rough expulsion.
- “Bum out” – to disappoint or sadden.
❓ Connection to Sexuality
When referring to the body, bum denotes the buttocks, which—like “butt”—can have sexual connotations in terms of attraction or intimate touch. However, the slang senses (“lazy bum,” “bum rap”) are unrelated to sexuality.
Sexopedia.co is an educational glossary of sexual‑ and gender‑related terms—helping you improve your English while deepening your understanding of identity, language, and self‑expression.