Marcus's Lying Gag

On the film, Marcus had a lying gag. Every time he lied, he said "You know what I'm sayin?"

Apparently, they never ceased to include it on the show, and Tasha went straight to conclusions. Marcus is admitting it to his friends that he had a "one night stand".

Not sure whether to call this a goof or Tyler's lack of analyzing his past films and just going straight ahead with the characters.