swing both ways
US /swɪŋ boʊθ weɪz/
UK /swɪŋ boʊθ weɪz/

1.
to be bisexual; to be attracted to both men and women
:
•
She mentioned that she swings both ways, so she's open to dating anyone.
•
It's not uncommon for people to swing both ways.
to be bisexual; to be attracted to both men and women