Self-Love:

"I wonder what that woman is doing at a place like this all by herself."

"Maybe she's a lesbian, but for herself. Maybe she's a Self-bian."

"That's pretty good. Did you come up with that just now?"

"Yup."

"So what do you call a gay guy who's gay for himself? Wait. You've thought of that already, haven't you?"

"Yup. He'd be a Homo-lone."