Knock Knock - Remember

Bob: "Will you remember me tomorrow?" 
Bill: "Yes"
Bob "Will you remember me next week?" 
Bill  "Yes"
Bob: "Will you remember me next month??"
Bill: "Yes"
Bob: "Will you remember me next year?"
Bill: "Yeah"
Bob: "Knock Knock"
Bill: "Who's There?"
Bob: "See, you forgot me already!"

Yo Mama - Raincoat

Yo mama is so fat, when she wears a yellow raincoat, people yell "Taxi!"

Yo Mama - Picture

Yo momma's so fat, I took a picture of her last Christmas, and it's still printing!