pick (one's) nose(redirected from picked their noses)
pick (one's) nose
1. Literally, to remove nasal mucus (i.e., "boogers") with one's finger. Tommy! Quit picking your nose, that's a filthy habit!
2. By extension, to dawdle, fool around, or waste time idly. No wonder we're losing so much money—half our staff just stands around picking their noses for most of the day!