When a girls physical appearance is distorted because of the sunglasses that are hiding her face. Girls appearance can seem to be that of a hot girl but once the sunglasses come off she is far from attractive.
Guy1: dang that girl over the with the sunglasses is pretty hot Guy2: Beware of the SDE
girl takes sunglasses off
Guy1: o gosh! ughh i wouldnt touch her with a 10 ft pole
Guy2: another victim of the SDE
By Norah
Sde
It's when you can be around a boy and tell that he has a little pee wee