What is "lushing"

Usage examples of "lushing".

And then, when we had finished our meals in Mrs Stiles's pantry, he would make a great show of loading up the tray—and I'd see him, when he thought no-one was looking, tipping the beer from the bottom of all the glasses into one great cup, and lushing it away.

Presently he began to lick his private parts with so strong a lushing sound that it quite overlaid a pianissimo passage for the flute and Stephen lost the thread of the argument, such as it was.