Definition of bingo wings in English:
plural nounBritish informal
Folds of loose flesh or skin hanging from the undersides of a woman’s upper arms.
- There aren't many women beyond their late 30's, in truth, who I can think of who don't have bingo wings.
- Devotees often sport 'bingo wings' - ill-advised displays of generous upper-arm flesh.
- The award for most catty remark went to Jackie, who said that a woman in the crowd had 'bingo wings'.
1990s: from an association with the game of bingo, in which the loose flesh may be visible when a winner calls out and raises their card.