AC/DC Definition
āsē-dēsē
adjective
Having a bisexual orientation.
American Heritage
Webster's New World
(not comparable) Able to operate with either alternating current or direct current.
Wiktionary
(comparable, slang) Bisexual.
Wiktionary
Origin of AC/DC
From the likening of a bisexual person to an appliance that works on either alternating or direct current
From American Heritage Dictionary of the English Language, 5th Edition