noun

duff

DUF/dˈʌf/

The buttocks.

The older man rests one hand on his fully clothed duff.

An older Black man seen in a rear three-quarter view rests one hand on his fully clothed buttocks, making the informal anatomical meaning clear without nudity or sexual emphasis.

Etymology

The origin of duff meaning 'buttocks' is unknown. It appears among several colloquial uses of the word, but the evidence does not establish how this particular bodily meaning arose.

More examples

Get off your duff and help us move these boxes.
These padded shorts protect your duff when you fall.
We sit on our duffs while the others clean up.

Forms

duff · duffs

Similar words

buttocks: The neutral anatomical term, suitable for formal contexts.
butt: A more general informal term, less tied to set phrases.
rear: A milder, indirect term for the same body part.