begging bowl
noun /ˈbeɡɪŋ bəʊl/
  /ˈbeɡɪŋ bəʊl/
 - a bowl held out by somebody asking for food or money
- (figurative) He is taking round the begging bowl on behalf of the party's campaign fund.
 - (figurative) The school is always having to get out the begging bowl for books and basic equipment.