1a kind of firm or hard sweet which softens when sucked or chewed, made by boiling together sugar and butter, often with other ingredients or flavourings added:a pound of walnut toffee
[count noun] a small shaped piece of toffee.
2British informal, dated nonsense; rubbish:his wife swallowed this load of old toffee
not be able to do something for toffee
British informal be totally incompetent at doing something:Jill said I couldn’t sing for toffee