(simile, idiomatic) Very unsympathetic; callous / (simile, idiomatic) Able to endure difficulties; tough

(UK, idiomatic) used, cheated, or exploited by

plural of hard-on

You can't have it both ways.

A book with a solid binding.

(of a book) Having a solid binding.

A musical instrument consisting of a flexible metal or bamboo “tongue” attached to a frame. This tongue is placed in the performer’s mouth and plucked with the finger to produce a note of constant pitch. Melodies can be created by changing the shape of the mouth and causing different overtones.

callous and toughened by experience

(of an idea or plan etc) Absurd, foolish or stupid. / (of a person) Frivolous and silly; featherbrained or scatterbrained.

A square, tapered hole in an anvil used to hold certain blacksmithing tools