look up any word, like blumpkin:
 
1.
A simple phrase used to describe a temptation or a woman you are tempted to go out with even though you know she is a deceiver.

Also the name of a Kanye West song from the album "My Beautiful Dark Twisted Fantasy".
Jim: I've heard all the rumors, but I wanna ask her out and see what happens.
Bob: Dude, she's just a devil in a new dress...
by Jacalackso November 09, 2010