Lesbian (blue haired or not) who shag people with a cocks need to find themselves another label. If they need another word other than those that already exist. It's not that difficult!
Honestly, Bespin, I know that it is hard to hear that some people don't readily accept you into categories that have already got serviceable definitions. But it can't come as a surprise that the people who are within those definitions, and who have been discriminated because of that, are railing against further demonisation for saying no. How arrogant do you have to be to insert yourself into a group and expect it all to change around you?