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1.
To move with a swift flow of swagger, or to act in a thuggish manner.
That nigga gets so many bitches because he's got his flow motion on.
by rich ross November 23, 2010
 
2.
The act of menstrating heavily. The start of menstration.
Husband: " Honey lets go out on the town?"

Wife:" Im all crampy and just want to lay here, I don't want flowmotion"
by Max Pontiac February 12, 2007