Definitions by Luke Jay

Crud Butter 

The half used peanut butter/jam or spread that is whiped back into the container it came from when it is not used. The crud butter has usually touched toast or a bagel and is put back into the container with crumbs all over it.

Tom: "katie why do you alway's whipe the knife on the peanut butter, i hate crud butter."

Crud Butter by Luke Jay June 25, 2008