subs. (common).A hearty meal: cf. KAFFIRS TIGHTENER. TO DO A TIGHTENER = to eat heartily.
185161. H. MAYHEW, London Labour and the London Poor, I. 70. For 2d. what is elegantly termed a TIGHTENERthat is to say a most plenteous repastmay be obtained.
1857. J. E. RITCHIE, The Night Side of London, 193. Nommus (be off), I am going TO DO THE TIGHTENER.