buy a pup

buy a pup

slang To buy something that ultimately proves to be worth nothing or less than promised. Primarily heard in UK. I'm sorry, but that's definitely not an authentic Louis Vuitton bag. You've bought a pup, my friend. He told us he has years of experience in this field when we hired him, but he acts like this is his first time handling accounts like this. I'm starting to think we bought a pup.
See also: buy, pup
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

sell somebody/buy a ˈpup

(old-fashioned, British English, informal) sell somebody or be sold something that has no value or is worth much less than the price paid for it: I’m wondering whether this really is a genuine Rolex. Do you think I’ve been sold a pup?The idea behind this idiom seems to be that someone dishonestly sells a young dog with no experience to someone who is expecting a more valuable older trained dog.
See also: buy, pup, sell, somebody
Farlex Partner Idioms Dictionary © Farlex 2017

pig in a poke, to buy a

To purchase something sight unseen and risk disappointment. The term comes from the ancient dishonest practice of putting a worthless cat in a bag (poke) in place of a young suckling pig, an expensive delicacy. The term was proverbial by the time John Heywood collected his proverbs (1546) and has been used ever since. See also let the cat out of the bag.
See also: buy, pig, to
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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References in classic literature ?
Buy a pup and your money will buy Love unflinching that cannot lie-- Perfect passion and worship fed By a kick in the ribs or a pat on the head.
n Never buy a pup that doesn't come with FREE insurance for at least a month.
Most importantly, if you want a good working dog, you'll need to buy a pup from a recognized LGD breed or a cross of recognized breeds--and nothing else.
Don't buy a pup with the same named dogs constantly in pedigree ie breeding grandfathers with granddaughters.
Steer clear of dgdgdgdgdg rogue traders TO BEAT the rogue traders: ?Never buy a pup under eight weeks old.
So it is imperative to buy a pup with the goods to make a sound, strong-performing gun dog.
Never buy a pup under eight weeks old and insist on seeing it at least once with the mother where it was born.
Never buy a pup without checking references; save time by doing so before you meet.
Do not buy a pup unless it has papers to prove its history.