Someone who is talented enough to use either side of their toast, when applying butter, jelly, jam, peanut butter, even though one side of the toast may be a little more done than the other.
"One side is lighter than the other, which side do you want me to use?" "It doesn't matter. I'm bi-toastal!"
by Relda Faye May 3, 2010

A person whose sexual orientation switches between homosexual and heterosexual, with each phase lasting from months to years. This may optionally be accompanied by partial amnesia in which the person insists they have always been their current sexual orientation and just did not realize it.
"So, did you hear that Alyssa has come out as a lesbian?" "Seriously? She dated Gerry for years! I had hunch she'd turn out to be a bi-canthrope. How long do you think it'll take for her to decide this has been a phase?"
by AmazonHusky January 9, 2012

Bi chair is how some gay people sit, as gays we cannot sit in a chair for the life of us. So basically bi chair is where we sit slouched knee high cross-legged position it's very confusing but very comfortable.
Human one: wow
Human two: what?
Human one: you sitting in the bi chair
Human two: *looks down then back up* wow
Human two: what?
Human one: you sitting in the bi chair
Human two: *looks down then back up* wow
by Gaybabyinatrenchcoat November 19, 2019

by iAlerion April 1, 2011

Guy: "Hey man what are you doing?"
Homeless Guy: "What does it look like!? I'm bi-winning! I'm winning here and I'm winning there!"
Homeless Guy: "What does it look like!? I'm bi-winning! I'm winning here and I'm winning there!"
by YourMothersPieHole March 27, 2011

Sylvio and Kevin were giggling together when their heads got a little too close and they bi-accidentally brushed lips.
by Rox_Anne September 9, 2013
