What do you call a disk that didn't burn right and is now useless?

A coaster for my coffee mug.

Raw material for an art project.

rubbish!

boinked disc

A disc-ard.

FAIL

dud.

A milli Vinilli

garbage?

Coaster…just like the old free ubuntu cd’s, never run out of coasters again.

Borked.

A piece of shit

A frisbee.
If you put it in on top of an empty tea cup the microwave for 3–5 seconds it will make pretty sparks. Zzzzaapp!!!

You call it Wilson, hug it, talk to it and keep it as your best friend.

It’s a coaster. But not as cool as this coaster! Yes, I was a tween in the early 80s. Shut up.

I call it a WHY GOD WHY

A perfect reflector, if hung on a tree, to show the snow plow guy where the driveway is.

Timmy.

A blunt shuriken of rage!

a pisk.

@Zaku I was not aware that blunts had feelings &)

If you hang it in the garden it will keep the birds off your plants.

@nanocat – I’m not sure they do either – I was thinking of the rage with which I throw them. Now that you mention it though, it may be that the rage is actually imparted into the disks along with the kinetic energy.

@Zaku
I thought you were talking about another kind of blunt haha.
http://www.urbandictionary.com/define.php?term=blunt