Sentence:  Liz, he says, why trine for a make, when you can <WSD>wap</WSD> for a winne. I'm no dimber mort, I says. Don't ask you to be a swell mollisher, sister, coves want Miss Laycock, don't look at your mug. So I begin to sell my mother of saints. 
Meaning of the word marked with <WSD> tags:  To engage in sexual intercourse.