Yes all of those are right but the sexual term is when you are having anal so hard that you cause her asshole to bleed and as you pull out you cum onto the now red asshole. You mix it all together with your dick making a reddish mixture. For an added bonus you take a cup and gather the liquid and offer it to her as 'red rum'.
"Dude, can you believe it! Your mom actually drunk the red rum!"
"Shannon wouldn't drink the red rum, so I poured it all over her face."