Originated in medival England in the 17th century, this phrase has changed in meaning completely, from the orignal shorthand denotation of "Alas! An advasary has come upon us! To the catupults!" to the modern definition of "Please grease up my pe nis."

Old: Bartholomew, the dastardly barbarins are attacking! Foe Shizle mine nizle!

New: B***h step up! Fo shizzle my nizzle!

A slightly aborted version of a declined McDonald's slogan:
Hamburglar: "Come robble my knobble."

it's the big neptizzle with the snoopy dee oh double gizzle

David Letterman said it best: I don't know what the fizzuck I'm talking about.