A chocolate candy with peanut butter filling.

Peziza phyllogena

plural of peanut butter cup

plural of common brown cup

plural of cup o' joe

A kind of Attic black-figure cup, produced in the sixth century BC, bearing fine small-format decoration.

plural of Little-Master cup

In any situation, however well planned, something can always go wrong.

(chiefly US) comment used to imply that previously stated information, ability, or item, is of no value.

Alternative form of there's many a slip twixt cup and lip