from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A thick quantity of sputum, usually containing phlegm.
- n. Any thick, disgusting liquid.
Origin unknown; possibly from Luger, Lou, Lue or Louie; possibly from the name of the baseball player Lou Gehrig (from the habit of baseball players of spitting); possible variant of booger. (Wiktionary)