Christmas...The only change was that we had a 'plum duff' for dinner.
出自： R. H. Dana
These are not people who sit on their duff, expecting a handout.
出自： R. Critchfield
I went down to the pub because the play was so duff.
出自： J. Lymington
To find the duff bulb you'll have to test each bulb in turn.