Sentence:  “...if you call my duds a ‘livery' again there'll be trouble. It's bad enough to go around togged out like a life saver on a drill <WSD>day</WSD>, but I can stand that 'cause I'm paid for it. What I won't stand is to have them togs called a livery.nb...” 
Meaning of the word marked with <WSD> tags:  The part of a day period which one spends at one's job, school, etc.