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A girl who follows you around the club or any other place and cock blocks you all night. Similar to a clinger, but in terms of a girl who is not in a relationship with a guy.
Can also be a guy who follows a girl around.

See also grenade or landmine.
That girl Danielle is such a motion mine, she follows pauly d around everywhere!
by 69jshore69 February 07, 2011
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