The attraction to anything that is considered "rad" or "radical". Typically a Radsexual favors the 90s and will often use a walkman with 100 skate brand stickers on it.

A Radsexual will also watch alot of Teenage Muntant Ninja Turtles on their tube tv.

when you've done something so cringe you can't stop replaying it in your head and it stops you from getting on with your every day life