mama a girl behind you

a phrase derived from floptok. a young girl is recording a video of her mom with a snapchat filter on. her bitmoji appears behind her in frame, to which the girl, surprised, says “mommy… mama a girl behind you”

the phrase has been turned into something used to convey surprise jokingly, where “girl” can be replaced with basically anything

when you’re spilling tea but the tea walks into the room:
“mama a girl behind you”