Brewer's: Lie at the Catch
(To). Thus Talkative says to Faithful. “You lie at the catch, I perceive.” To which Faithful replies, “No, not I: I am only for setting things right.” “To lie at the catch,” or lie on the catch, is to lie in wait or to lay a trap to catch one.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894