eat someone's lunch

Meanings:

• 1.

  Generalliteral
  • To eat another person's midday meal or packed lunch.

• 2.

  USidiomaticchiefly USslanginformal
  • To defeat, outclass, or humiliate someone thoroughly.

• 3.

  USidiomaticchiefly USbusiness
  • To supplant a competitor or take away a competitor's customers, market share, or commercial advantage.