RAREBIT n. A Welsh rabbit, in the speech of the humorless, who point out that it is not a rabbit. To whom it may be solemnly explained that the comestible known as toad-in-a-hole is really not a toad, and that riz-de-veau à la financière is not the smile of a calf prepared after the recipe of a she banker.

The collected works (ed. 1911)