Someone or something that acts in a lazy manner, or someone who is whiny and refuses to do anything on his/her own. (Much like the celebrity herself)
The rhino at the zoo was being a Hillary Duff. It just sat there and ate. Bro, you're acting like a Hillary Duff, just go to bathroom by yourself!
By Population 3,293
a singer who is dating joel madden.
y dss ppl if u cnt beat em?
By natatatatatat
Hillary duff is the equivalent to saying gay, she has t.v. commercials requesting the public not to use the word gay in place of the word suck. In order to help her cause Hillary duff will now stand for gay which stands for suck.
Bill: my favorite team lost. Richard: dude that's Hillary duff. Bill: why are there so many dude's at this party? Richard: yeah it's hella Duffy in here.
By Urq