the mutual act between a man and a woman or two men ahhh, gay
where sexual intercourse in the anal cavity is performed either due to the woman riding the metaphorical 'crimson river' or just for pure butt fucking pleasure between two men.
dale: so lewis, what you up to this weekend?
lewis: well man, kati's on her rags right now, so im docking anchor in poo bay. you?
dale: funny that, me and aidan are doing the same :).