Sentence:  She waited a moment, quivering with the expectation of her husband's answer; then, as none came except the silent darkening of his face, she walked to the door and turned round to fling back: "Of course you can do what you like with your own house, and make any arrangements that suit your family, without consulting me; but you needn't think I'm ever going back to live in that stuffy little hole, with Hubert and his wife <WSD>splurging</WSD> round on top of our heads!" 
Meaning of the word marked with <WSD> tags:  To (cause to) gush; to flow or move in a rush.