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A speech impedement in which you take a short pause before completing the word spoken
"Today we will learn how to t--urn at an intersection"
"Man, that guy talks like a Flach!"
by Alex Jacobson October 15, 2007
To fuck a womans pussy hard untill she cums,

Also Used as Flached; If a woman has cum from being fuked hard.

Also Used as Flaching; If a man is in the middle of fucking a womans pussy hard making her cum.
Hey sean, you gonna flach that honey tonite?.... Yeah, i am.
by Redmond May 07, 2004