To "get carded"??

I recently read something that talked about someone who "still gets carded" and the context made it seem like this signified sexual attrativeness.

Anyone know what the expression means and how it was derived?

Patty

If you have to be 21 years old to drink in your part of the world and you dont look 21 years of age you will "be carded"----you will be asked to show proof of your age which is usually your drivers license. It used to be, at least here is the US, your draft card that a male would show. Just a guess but I think that is where the "card' part of your phrase is derived.