Literally a hybrid of (or short for) Shitty Dreads. When a person has those
nasty, un-cared for dread locks and doesn't seem to care that they look like a
bum.
Dude: "Omg man, check out the Shreads on that
guy!"
Friend: "Ohhh
hell no, what's he think he looks like?!?!"
Dude: "
Roflmao!"