Green’s Dictionary of Slang

arkansaw v.

[Arkansas adj.]
(US)

1. to cheat, to take advantage of.

[US]Randolph & Wilson Down in the Holler 224: arkansaw: v.t. To cheat, to take advantage of.

2. to shoot in an unsportsmanlike manner, whether targeting animals or humans.

[US]Randolph & Wilson Down in the Holler 224: When a hunter shoots a quail on the ground, the bird is said to be arkansawed.

In phrases

go arkansaw (v.)

(US) to share expenses, esp. of a meal.

[US]Randolph & Wilson Down in the Holler 224: ‘No,’ said he positively, ‘we’ll go arkansaw,’ meaning that each man pays for his own food.