(US) respectable, upright; esp. when pertaining to a non-criminal world or sensibility.
|DAUL 205/2: Square-John pinch. 1. An arrest for a crime not specifically of an underworld character, as rape, desertion, and non-professional fraud.et al.|
|Riot (1967) 36: A squarejohn wife-killer like Skinny.|
|No Beast So Fierce 169: He was a squarejohn citizen, a believer in the death penalty, a coward, a dog.|
|Under A Hoodoo Moon 119: For all the square-goods dudes I met like Joe, there were ten who’d gone wrong.|
|(con. 1962) in Stark 10: He’s out to screw the squarejohn world.|