When you perform sexual intercourse with a partner while watching college game day.
Hey babe, get up, gameday is on. ItÃ¢ÂÂs time for a Mississippi sunrise
Mississippi Sunrise: define #2
When, as you wake up, the sexual partner lying next to you gives you head and you proceed to urinate in their mouth.
Susie woke me up with a little Mississippi Sunrise yesterday, incredible! I didn’t even have to get out of bed!