roostcock means the male of the domestic fowl; a cock. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From roost + cock.
noun
- The male of the domestic fowl; a cock.“No matter whether his nag have the stringhalt, and steps like a roostcock, or has wind-galls the size of bladders, or has been fired till his legs resemble a scored griskin, the BUTCHER's Boy braves every competitor in the race”