Both works

A phrase used by bisexual people, meaning that they are attracted to both men and women.

"Do you like men or women?"
"Um... both. Both works."

the phone works both ways

An infamous line used by elders & parents frequently in order to push the responsibility to maintain a healthy relationship between the two.

child: grandma ! i haven’t seen you in so long
grandma: well the phone works both ways though kiddo.
child: *thought* what ??