(hill-uh-ree duh-ff) noun;sometimes used as adjective.
Hilary Duff is a typical pop star. Not amazing, not horrible-lets-kill-her. Tries to be punk, which is extremely pathetic. Is supposedly Joel's ex/current gf. Prep. Blonde.
Person: You are soo being Duffish.
Person 2: OMG im sorry...
Person: Stop being such a Hilary
Person 2: bUt Sh3z LyK sO k3wL!
"0h My FxcKING GAWSH! itZ aSHLEE SIMpSON! She IS sOOO FxCKING raWKIng! OMG!111ONE!22!!!TWO!"
Person one: "Okay, show them your 'Ashlee'"
Person two: 'Okay...um...OMG I dont give a dxmn what people think about me because I am such a rocker and I love rock music because I totally sing it and I so didnt lip sync, my lips were only moving while there was no sound. DURRR."