verb. (thieves).1. To inform; TO PEACH; TO SQUEAK (q.v.). Hence SQUEALER = an informer: see NARK (GROSE).
1870. New York Tribune, 27 Oct. G. R is caught, and may SQUEAL on us.
1882. The Century Magazine, xxxv. 649. The first step is to spread abroad the rumor that this, that, or the other confederate is about to SQUEAL; it will be but a few days before one of the rogues will anticipate the traitors by turning States evidence.
1896. LILLARD, Poker Stories, 52. The planter was clean cornered, but he was working George on a dead sure thing and couldnt SQUEAL.
1900. FLYNT, Tramping with Tramps, 128. If they SQUEAL, as the tramp says, he is sure to be rewarded.
1902. LYNCH, High Stakes, xxiii. When he drew a fare and got well treated, he was not the man TO SQUEAL.