From the movie Smokey and the Bandit Part 3
(Examining the flat tire on their car)
Junior: It's flat Daddy.
Buford T Justice: Flatter than your momma's chest.
What Rick Grimes does with the signs in Love Actually. Any similar attempt by a stalker/creeper to win someone over using awkward and ill-advised attempts at flattery.
Coco: "Hey Ruby, someone just brought you a dozen roses and a 'You're Beautiful' balloon!"
Ruby: "Ugh. My stalker is flattercreeping again."