Bob: "hey did you see that akward girl at clinton's inauguration"
Sally: you mean chelsea clinton ew? but now she is really pretty!"
Bob: "mmm...i wonder if she is interested..."
When you are so incredibly ugly as a child/adolescent, you are hailed as beautiful for having average looks as an adult.
Randomperson1: OMG! Remember when the Smith's daughter was a complete troll?
Randomperson2: Yes she is stunningly attractive these days!
Randomperson3: Argh, she is jus tsuffering from Chelsea Clinton Syndrome...