What did sha na always say on martin Lawrence comdey sitcom?

You're likely thinking of "Martin", the popular comedy sitcom starring Martin Lawrence. There is no recurring character named "Sha Na".

However, there are some iconic catchphrases and lines used by the main characters:

* Martin Payne: "You know what I'm sayin'?!", "I'm the King!", "Get out!"

* Gina Waters-Payne: "Martin!", "You're a fool!", "You ain't nothin' but a big, bad, mean, nasty, crazy..."

* Tommy Strawn: "I'm tellin' you, man!"

* Cole Brown: "Word up!"

Are you perhaps thinking of a different show, or a specific character with a similar-sounding name?