or A.C./D.C., ac/dc, a-c/d-c, a.c.-d.c.


alternating current or direct current.

Definition for ac-dc (2 of 2)


[ ey-see-dee-see ]
/ ˌeɪ siˈdi si /

adjective Slang.

sexually responsive to both men and women; bisexual.

Origin of AC/DC

1940–45, for an earlier sense; 1960–65 for this use Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for ac-dc



informal (of a person) bisexual

Word Origin for AC/DC

C20: humorous reference to electrical apparatus that is adaptable for alternating current and direct current
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for ac-dc



electronics abbreviation of alternating current/direct current, by 1898. As slang for "bisexual," 1959, said to have been in use orally from c.1940; the notion is of working both ways.

Online Etymology Dictionary, © 2010 Douglas Harper