Note: Checkk out the film "Millers Crossing" for colorful usage of the term.
NICK: That's awfully strange-I heard from Adrian that yer' going to see the White Stripes. You givin' me the "high hat" fucker?!
Taken from the sound that is made when the snare drum and high hat are hit in sequence after the punch line of a joke.
Chris: That's what she said!
John: There you go again. Always coming with the "High Hat". Cant you ever take things seriously?