pick one's nose

Meanings:

• 1.

  General Englishinformalcolloquial
  • To insert a finger into one's nostril in order to remove mucus; a literal and typically socially discouraged action.

• 2.

  General Englishinformal
  • To occupy oneself in a fidgety, idle, or unproductive manner; to act absentmindedly or distractibly.