Halfdyk 

A person who only has a partial male genitalia.

Chris has a halfdyk.

Halfdyk by Ctownpimp December 13, 2005

HalfaDyke

One who has only been with one guy and one girl.
Continuously "acts" like a raging lesbian but still takes the "D".

Gacy lesbitt

Gacy is always hitting on girls but has been with the same guy forever. She's confused I shall call her a Sikeadyke or a halfadyke.

HalfaDyke by Helenkeller January 5, 2014

Halfadyke

A chick who's bisexual.

She's called this because
she likes guys and girls.
Cause she goes both ways
People can't call her a dyke
because she's not a complete
lesbian so you can call her
a halfadyke.

"My friends a halfadyke i saw her makin' out with some girl
on Tuesday."

Halfadyke by Jak173 January 1, 2009