1. A handle or projection used as a hold or support.

2. A lug nut.

3. Nautical A lugsail.

4. A projecting part of a larger piece that helps to provide traction, as on a tire or the sole of a boot.

5. A copper or brass fitting to which electrical wires can be soldered or otherwise connected.

6. Slang A clumsy fool; a blockhead.