Sentence:  "Even some members of the new bourgeoisie indulge in conspicuously boorish behavior, like hawking <WSD>phlegm</WSD> onto the pavement or picking their noses at business meetings." 
Meaning of the word marked with <WSD> tags:  Viscid mucus produced by the body, later especially mucus expelled from the bronchial passages by coughing. (from 14th c.)