"What kind of castle is this? This is a poor people's castle! With no lumpin' waffles for my dump truck!" - LSP
"I'm not jealous, I'm weird!" - Finn
"Huge mambo mama brains!" - PB
"Put you in my oven..!" - LG
"You would defy nature for me?" - FP
And basically anything that the big white guy in "Five Short Graybles" says. emotion_dowant
Because reasons.
So many have already been said. maybe...
"C'mon lets go to my house, cmon' lets go to my hooouse"
"I grant you the big cash money wad"
and more but really I cant think of any others