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a random item, usually small, that people don't need
My aunt gave me this useless knickknack for my birthday. I think I'm going to sell it.
by Elvin the Elf June 18, 2011
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2
Any piece of shit (PoS) you can buy from tourist traps from around the world. Made cheap, and sold to idiots who love them way too much.
I got some lovely knick knacks from this terrific *antique* store in Maine.
by M2. October 01, 2003
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3
A selection of snacks and finger-foods, usually ready to eat, not requiring any preparation.
You wanna eat something? I have knick knacks...
by SoulLimbo June 28, 2011
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4
a short by Pixar shown at the beginning of Finding Nemo which includes a bunch of souvenirs; mainly surrounds around a snowman in a snowglobe trying to meet the Sunny Miami girl, who waves at him; his snowglobe only keeps himself from meeting her, so he tries to find a way out.

The excellent music done in the background was by Bobby McFerrin, the artist of the song "Don't Worry, Be Happy"
I watched Knick-Knack before finding Nemo came on.
by Gwen Stefani Grrl November 27, 2003
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6
the act of sex also known as "FUCKING" to the point of orgasm usually concisting of several positions , and or one or more breaks to smoke and the go again until the point of exhaustion
hey maya did u "knick knack" with justin yet?
maya: no no i didnt take my pill yet but as soon as i do i bet the knick knack will be amazing .
by JustinMayaLu January 28, 2009
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7
the thing you wear under your pants/skirt, not to be confused with "panties" which is a retarded american word that we have no use for. See also: underwear
Gotta get some new knick knacks, my old ones have mysteriously disappeared
by Immi_callmepnk August 25, 2007
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