loaf
A block of bread after baking.
Any solid block of food, such as meat or sugar.
(Cockney rhyming slang) The brain or the head (mainly in the phrase use one's loaf).
A solid block of soap, from which standard bar soap is cut.
(cellular automata) A particular still life configuration with seven living cells.
(Cockney rhyming slang) To headbutt.
(Internet slang) To assume or be in catloaf position (for cats or other animals).
To do nothing, to be idle.