Fo' shizzle

From Rap Dictionary

interjection

Fo' Thizzle

For sure. "Thizzle" is an example of a word transformed by removing most of the trailing syllables and replacing them with "-izzle". Snoop Doggy Dogg is generally credited as the originator of this practice in rap, however E-40 was doing it on his albums long before him. This practice of word bastardisation is known as Matt Fooster language.

Actually E-40 didn't invent this slang either, it was Frankie Smith and the Gap Band.

"Fo' shizzle Pizzle...I'm on the track with the big Snoop Dizzle" -- Ludacris (Holidae Inn)

"Fo shizzle my Pizzle used to dribble down in V.A." Jay-Z (H.O.V.A.)