Sped Muff 

Short for Sped Muffin, meaning someone who makes a stupid mistake or asks a dumb question.

For Example,

Tucker: Meaghan, where do you live?

meaghan: Tucker, we live togeather you sped muff.

Sped Muff by M[cote]2013 June 6, 2009

sped muffin 

1.a retarded,stupid or plain old jackass moron.
2.a muffin full of sped

Go eat a sped muffin, BITCH!!!

sped muffin by Salusca November 19, 2006