rainbow mouth

when a guy eats a girl out when she’s on her period, then he cums in her mouth then they make out and mix the cum and blood together.
have you ever rainbow mouthed with a girl?
by the more you know June 05, 2018
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Rainbow mouth

Rainbow mouth means its literal term, someone with an open bite .
"That bitch suck her finger so much she gotta rainbow mouth"
by yahairapthesillyceilingfan May 06, 2024
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