Green’s Dictionary of Slang

1. a surprise.

1914

Jackson & Hellyer Vocab. Criminal Sl. 27: cuter [...] Used by gamblers and western criminals. A surprise.

2. a fool, a victim.

1914

Jackson & Hellyer Vocab. Criminal Sl. 27: cuter [...] Used by gamblers and western criminals. [...] a fool; a josh; ‘a boob’.