I. beg ‧ gar 1 /ˈbeɡə $ -ər/ BrE AmE noun [countable]
1 . someone who lives by asking people for food and money:
the beggars on the streets
2 . lucky/lazy/cheeky etc beggar British English spoken used when speaking to or about someone you like:
‘How’s Dave?’ ‘The lucky beggar’s in the South of France!’
3 . beggars can’t be choosers used to say that, when you have no money or no power to choose, you have to accept whatever you are given
II. beggar 2 BrE AmE verb [transitive]
1 . beggar description/belief if something beggars description or belief, it is impossible to describe or believe it:
They showed a lack of common sense that beggars belief.
2 . literary to make someone very poor:
Why should he beggar himself for you?