Stories We Like: A Guide to the Comma
1580s, from shoe (n.) + horn (n.); earlier shoeing-horn (mid-15c.).
in the figurative sense of "to put or thrust (something somewhere) by means of a 'tool,' " 1859, from shoehorn (n.). Earlier it meant "to cuckold" (mid-17c.), with a play on horn.
To insinuate by effort; force or fit in:Attorney General Griffin Bell managed to shoehorn an energy pitch into a speech