1. A name for a gadget or thing whose actual name is unknown or has been forgotten. Where's that doofer? I need it to finish this repair. Hand me that doofer or whatever it's called, will you?
2. A cigarette stub saved for later use. I knew I was running low on smokes today, so I saved this doofer.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
dooferand dufer (ˈdufɚ)
n. a (found or borrowed) cigarette saved for smoking at another time. (It will do for later.) He takes two fags, one to smoke and a dufer.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.