1 definition by miSZkAiTLYNd0NATO
a compulsive liar. they lie or " flap " about everything, to make themselves look cool. Johnny Dee is a flapper.
Johnny - Yo bro i was banging this bitch last night at my cousin john Gotti's house and then all of a sudden bro i dumped that bitch and banged out her mom.
Boy - You are a fucking flapper.
Boy - You are a fucking flapper.
by miSZkAiTLYNd0NATO July 4, 2006