Gay baby is a recursive term used to describe anyone who when called a gay baby starts acting like a gay baby.
Their behaviour is described by being insulted on an unreasonable level, spitting poor insults in a raging manner, acting like they're much smarter by insulting you and trying to put you down to their level after being called a gay baby.
All of this behaviour makes them even more of a gay baby, so you can just keep calling them a gay baby without having to say anything else.
John: Lucas, you're a gay baby.
Lucas: Oh, oh, oh, I slept with your mom last night hahahaha, YOU KISS YOUR MOTHER WITH THAT MOUTH? FUCK YOU!!!
John: Like I said, you're a gay baby.
Some who acts like a literal gay baby and mostly likely did crack while inside his father's womb. Do not be confused with gay Mongolian babies, which are a whole different thing.
Damn chosen calm down, you're really acting like a gay baby right now.
Something people say when there is an awkward silence. During that awkward silence a gay baby is born
*awkward silence
"Gay baby"
Musical gay: A gay who loves musicals, can sing along to at least 3 broadway shows or Disney movies, probably a bottom
Chris is such a musical gay, he couldn't stop singing to Wicked movie at theatre in unison with other bottoms.