Batt vs. Bats: What's the Difference?

Pieces of fabric used for stuffing; batting.

Mentally deranged; crazy.

Insulation, usually made of fiberglass, that is used chiefly to prevent heat loss and is manufactured in sheets or rolls.

Plural of bat

A roll or section of such insulation.

(informal) Mad, insane.

Pieces of fabric or fibre used for stuffing; as for batting or insulation

Crazy; insane; loony; demented; batty.

A shoe.

Informal or slang terms for mentally irregular;