Green’s Dictionary of Slang

1. a story.

1900		Flynt & Walton Powers That Prey 254: I s’pose you want to hear my rag-chewer now?
1903		S.F. Call 1 Feb. 5/3: I s’pose you want to hear my rag-chewer now.

2. a (negative) critic.

1899		Wichita Dly Eagle (KS) 29 Oct. 12/1: The old rag chewer has designs on the [Republican] party.
1905		Rich Hill Tribune (MO) 2 Mar. 4/2: We have never been a kicker, a knocker, or a rag chewer.
1907		Arizona Repub. (Phoenix, AZ) 26 July 12/3: The defendant is a rag chewer, a habitual and persistent scold.
1908		Seattle Repub. (WA) 10 July 1/3: Ridpath has never been in the race in the opinion of the average voter and political rag chewer.