dumb ugly or fat friend...
by NorCal Slanger March 27, 2017
Get the Duffmug. 
An old Australian Slang term referring to an unplanned pregnancy, first used in 1941 and all the way through to around the 70s. Rarely used now a days.
by Shen Bapri March 23, 2023
Get the Up the duffmug. A person who doesn't do anything productive with their life after high school - no job, no school, just vibes. Can also describe the act of being unproductive or lazy in general. The word originated from the last name Duffey, a kid who famously did absolutely nothing post-graduation.
Used as a noun:
"Don't be a duff — at least try to apply somewhere."
Used as a verb:
"I was just duffin' it all weekend, didn't move off the couch once."
"He's been duffing his life away since senior year."
Used as an adjective:
"That's the most duff thing l've ever seen — unemployed and still
Lplaining."
"Don't be a duff — at least try to apply somewhere."
Used as a verb:
"I was just duffin' it all weekend, didn't move off the couch once."
"He's been duffing his life away since senior year."
Used as an adjective:
"That's the most duff thing l've ever seen — unemployed and still
Lplaining."
by Duffer555 July 21, 2025
Get the Duffmug. 
A meme come to life, a Fletcher Duff is someone who personifies a number of memes often found on the internet without necessarily directly correlating with just one.
"Oh, that meme reminds me of something - i just can't put my finger on it"
"That must be a Fletcher Duff!"
"That must be a Fletcher Duff!"
by topg43 August 7, 2022
Get the Fletcher Duffmug.