Leaving a party/event/gathering abruptly without saying anything like "Goodbye", "Later", or otherwise acknowledging the departure. Considered poor etiquette and generally uncool.
Where's Chris?" "I don't know, I haven't seen him. He must have left." "Dirty out!? Lame.
A person who stays out all night shagging or generally up to no good! An affectionate, jokey expression originated in the North of England to describe slutty girls and boys.
A person who has not slept in their own bed on a specific night, with the inference being that they had sex, probably with someone met that evening (in a bar, club, wherever).
Dirty Doug out means ..It’s when I guys uses KY for anal sex and after awhile he decides to suck the KY lube out of her ass to spit it into her vagina for vaginal sex
Red gave her a Dirty Doug out when he sucked that ky lube out of ass and spit it into her vagina.