Sentence:  Most poignantly of all, though, when I get fed up with working alone, I remember Victorian high school staffrooms of the sixties and seventies: the rigid hierarchy with its irritations, but also the <WSD>chiacking</WSD>, the squabbles, the timely advice from some old stager with a fag drooping off his lip. 
Meaning of the word marked with <WSD> tags:  To taunt or tease in jest.