Term used to describe a small breasted or flat chested women.

Antonym: Shelf
You have some ketchup on your shelf. I don't have that problem with my knick knack rack. Things miss my chest all together and drip on my lap instead.
by Mrs. Freddy February 6, 2010
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1) Verb: When getting down to the business with a girl, cramping a knick-knack is the sequence of removing her underwear, scratching them, sniffing them, scrunching them up and then throwing them on the floor.

2) The past tense of shtting your pants.
1) Lad 1: Did you bring that chick back last night?
Lad 2: Y'all better know dat! I did cramp a knick-knack.

2) Nicky Nicky Shinder: I just cramped my knick-knack again! Will have to buy some new Primark undies!
by NiftyCreature February 6, 2013
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Any item given to you by either a mother, grandmother or crazy old aunt that is meant for public display. Usually small in nature and MADE IN CHINA.
Said item may or may not:
1. light up
2. glow in the dark
3. be in the shape of an animal
4. be covered in fur or metallic paint
5. be at home sitting on a doily
6. be highly breakable
7. be indestructible
8. be extremely useless and ugly
A light up plastic church that changes colour over time is knick knack shite.
by Skoogle December 23, 2008
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The endless amount of candle holders, doilies, figurines and other useless curios that people acquire and display in their homes covering every spare inch.
I will never move again - we've been unpacking knick knack paddy crap for a week!
by brorobo August 26, 2013
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The Discombobulated Shady Knick-Knack is a rare goat-like animal that is found on the high mountain slopes of the Scottish Mountains. When at its most confused, the Knick-Knack spins around in circles for approximately two minutes and then goes on a rampage to eat Cairngorm Snow Haggis’s. The minerals found in Cairngorm Snow Haggis’s helps the Knick-Knack grow a thick white furry coat that’s helps keep it warm when temperatures drop to a chilly -27°C.

Due to less oxygen on top of some of the hills the Knick-knack’s lungs are able to take bigger breaths to absorb as much oxygen as possible. The feet of the Knick-Knack are wide so the feet do not sink into the snow whilst chasing Snow haggises.

Knick-Knacks can be seen all year round in the Scottish Highlands but are particularly common in the winter months where the Knick-knack has been known to eat the unfortunate winter hill-walker or ice-climber with its razor sharp sabre-tooth teeth. Since modern hill-walking gear has got tougher over the years the Knick-Knack has developed sharper teeth so it can tear through the most Gore-Texed jacket on the market.
Physiatrist: You seem to be shivering alot. Whats wrong? Are you cold?
Non-Scottish person: I-I-I got chased down Ben Nevis by a Discombobulated Shady Knick-Knack.
Physiatrist: Christ, he will never recover.

by Muckle Flugga November 5, 2006
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A bra that doubles as a storage place.
She pulled out 2 cell phones from her knick knack knocker rack.
by Candyokid October 21, 2020
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When you pull up to a gloryhole, bend over, poke your sack down, behind you and, and through the hole. Then you have someone on take a blackjack and start smacking your testicles.
You get the best knick knack sacky whack at the D.C. airport.
by Fullblore February 2, 2023
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