A stupid, clumsy fellow.
1854. Man, in his original state, is little more than a big lummux of a baby.Dow, Jun., iv. 149.
1857. I hope youll leave somebody else to home besides this lazy lummox.J. G. Holland, The Bay-Path, p. 381.
1871. I would trust [the Roman cart-horse] to keep on pulling, long after your mere lummoxes had fallen in their shafts.Old and New, June (de Vere).