Top definition
When a guy has sex with a girl who is on her period, and his penis gets bloody from the girl's vagina.
Phil: Dude, I accidently did my girl on the time of the month, and got a red horn!
Jace: Why would you tell me that? That is nasty!
by codeman9028 June 27, 2014
Get the mug
Get a Red Horn mug for your dad Manafort.