3 definition by Plummkin

Top Definition
When some one thinks with their ass.
Who's brain ass idea was this?
by Plummkin December 27, 2016

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A piece of jewelry, bauble or trinket.
Look at that knick knack that girl is wearing around her neck!
by Plummkin October 10, 2015

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A piece of jewelry. A trinket or bauble.
Look at the knick knack that girl is wearing around her neck.
by Plummkin October 10, 2015

Mug icon
Buy a Knick knack mug!