A barbed spear or a hook with a handle, used by fishermen in securing heavy fish.
- A large iron hook attached to a pole or handle and used to land large fish.
- Nautical A spar attached to the mast and used to extend the upper edge of a fore-and-aft sail.
- A sharp metal spur or spike fastened to the leg of a gamecock.
- A climbing hook used by telephone and electric line workers.
- Slang A trick or gimmick, especially one used in a swindle or to rig a game.
- Slang Harshness of treatment; abuse.
- To hook or land (a fish) using a gaff.
- To equip (a gamecock) with a gaff.
- Slang To take in or defraud; swindle.
- Slang To rig or fix in order to cheat: knew that the carnival games had been gaffed.
- Chiefly British A public place of entertainment, especially a cheap or disreputable music hall or theater.
- Slang Chiefly British A house, building, or apartment, especially where one resides.
- Variant of gaffe.