Someone (usually bisexual, but can be other than such) whose attractions vary.
Today she likes girls, yesterday she liked guys, and who knows how she'll feel tomorrow; she's fairly flexosexual.
by rainbowrolemodel June 26, 2005
Heterosexual men who do not mind expressing emotional feelings toward other heterosexual men.
Chad and Karl were warmly embracing yesterday. They're definitely flexosexual.
by Aireli October 04, 2006