the fleshy part of the human body that you sit on
"he deserves a good kick in the butt"
"are you going to sit on your fanny and do nothing?"
The buttocks.
"The court clerk handed the summons to the local bumbailiff for immediate delivery."
A homeless person, usually a man.
A humming noise.
A bumbailiff.
In plain English: A bum is an old-fashioned term for a sheriff who collects debts.
"The bailiff tapped his bum as he announced the court's decision."
Usage: As a noun, "bum" refers to a lazy, good-for-nothing person; however, it's also an archaic term for a bailiff ("bumbailiff"). Be mindful of context and potential offense when using "bum.
be lazy or idle
"Her son is just bumming around all day"
To sodomize; to engage in anal sex.
"The wind began to bum through the tall grass, creating a low, continuous hum that filled the valley."
To ask someone to give one (something) for free; to beg for something.
To depress; to make unhappy.
To make a murmuring or humming sound.
In plain English: To bum means to hum quietly.
"The bees bummed contentedly as they gathered nectar from the flowers."
Usage: Bum (verb) means to produce a low, continuous humming or buzzing sound, often unintentionally. Think of a bee bumming against a windowpane or a poorly connected electrical wire bumming.
Of poor quality or highly undesirable.
"That old sofa is a total bum, and it's sagging in the middle whenever anyone sits on it."
In plain English: Something described as "bum" is really bad or not worth having.
"That old sweater was a real bum deal."
Usage: Use "bum" as an adjective to describe something of very low quality or utterly useless, like "a bum deal" or "a bum steer." Avoid using it to refer to a person, as this is considered offensive.
An expression of annoyance.
"I'm bummed that we missed the last train home."