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be up the duff

slang To be pregnant. You two have only been married for a couple of months, I can't believe you're up the duff already!
See also: duff, up

duff up

1. To physically assault someone; to beat someone up. A noun or pronoun can be used between "duff" and "up." Primarily heard in UK. Tom duffed up the drunken buffoon for making disparaging remarks about his sister. Two would-be muggers tried to rob a member of the Royal Marines, and he duffed them up right good.
2. To defeat an opponent thoroughly and easily. A noun or pronoun can be used between "duff" and "up." Primarily heard in UK. We went into the game underprepared and unfocused, and our opponents rightfully duffed us up.
3. To bungle or ruin something; to mess something up. A noun or pronoun can be used between "duff" and "up." Primarily heard in UK. The boss said I would get the sack if I duffed up the reports again.
See also: duff, up

get off (one's) duff

slang To start doing something, especially after a period of unproductivity or laziness. "Duff" in this usage refers to the buttocks. Grandma will be here in 30 minutes, so get off your duff and move this junk out of the living room! Ted needs to get off his duff for a change and make an effort around here.
See also: duff, get, off

up the duff

Pregnant. Primarily heard in UK, Ireland. You two have only been married for a couple of months, I can't believe you're up the duff already! I was pretty wild during my university years, which is how I found myself up the duff at 22.
See also: duff, up
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

up the duff

pregnant. British informal
1994 Daily Telegraph At 19, he was married (‘only because she was up the duff’ he explains gallantly).
See also: duff, up
Farlex Partner Idioms Dictionary © Farlex 2017


n. the buttocks. Don’t you get tired of sitting around on your duff?
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.

get off one's duff

Get moving, become active. This slangy idiom uses duff in the sense of buttocks, a usage dating from about 1840 and at that time considered impolite. It no longer is, at least not in America, and if anything this cliché is a euphemism for still ruder synonyms, such as get off one’s butt or get off one’s ass.
See also: duff, get, off
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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References in periodicals archive ?
In explaining why Duff became an important judicial figure for the Canadian Supreme Court during the 1930s, it is first necessary to have a basic understanding of the history of the Court, its changing role in Canadian society, and the emerging trends in constitutional and legal analysis that by the 1930s strengthened the movement to end appeals to the Privy Council.
As will be shown, Lyman Poore Duff served as a major symbol in this transformation of the Court's reputation.
Duff was born in Ontario in 1865, the son of a Congregationalist minister of Scottish and English ancestry.
Appointed to the British Columbia Supreme Court in 1903, Duff had only three years of judicial experience prior to his promotion to the Supreme Court of Canada in 1906 at the youthful age of forty-one.
Duff also served on several commissions during his years at the Court.
Duff received a number of personal accolades and awards following World War I.
The remainder of this article explores how portrayals of Duff that highlighted these personal characteristics and professional experiences were used to legitimate the modern Supreme Court.
Across the street at Bobbins tearoom and craft shop, an assistant confirmed it is co-owned by Susan Duff and that she regularly works there twice a week.
One local said: "William Duff is never seen in the two local pubs, the Glenleven or the Trust, nor does he mix very much in the area.
He tries to be aloof." Duff was born in Castlemilk, Glasgow, one of two boys whose father was an engineer.
and alerted Greater Glasgow Health Board, but their worries were waved away with an explanation that Mr Duff was simply a good businessman.
Dentists who knew Duff as a student at Glasgow Dental School, where he graduated in 1984, remember him as a quiet lad who rarely socialised.
Another added: "Guys such as Duff reflect appallingly on a hard-working profession."
Former patients reveal nothing was ever too much trouble for Duff, but there was a darker side that hinted all was not as it seemed.
"This is a scary and upsetting situation for anyone to go through, but Hilary is thankful that her family, her staff, her home and her pets are all safe," Duff's spokesperson told (http://www.tmz.com/2017/07/23/hilary-duff-robbed-expensive-jewelry/) Us Weekly  of the incident.