Definition of swing both ways in English:

swing both ways

phrase

informal
  • Be bisexual.

    ‘I was hoping he swings both ways’
    • ‘Her story is said to be "an engaging romantic adventure", though there's no word on whether she swings both ways.’
    • ‘They find out that he swings both ways.’
    • ‘The singer denied claims that he swings both ways.’
    • ‘The stunning actress told the magazine recently that she swings both ways, and she is in no way ashamed of her sexual preferences’
    • ‘At one moment, there is a hint that she might swing both ways.’