2. English Cockney rhyming slang for "sex."
Jack: Well mate, the only thing I happened to come by was this anorexic bird who was jilling off on her bed.
Kevin: Really? Well that's nothing special compared to what *I* caught on tape last night.
Jack: What did you see?
Kevin: You'd find this hard to believe, but I saw POSH AND BECKS engaging in some intense and passionate Posh and Becks with each other!!
Kevin: Yeah! And blimey man, was David a demon in the sack! He was ramming her indabutt like a stud bull!
Jack: Now THAT is voyeurism! My Jackson Pollocks are itching and I want to see the video!
Kevin: Sure mate, let's go to my house and watch it. I'm also going to put it up on the Web for others to see.
Mark H. Jazzing up Urban Dictionary since February 2004.
In a way similar to dog and bone, created by taking a word that rhymes with sex (becks) and adding a related word (posh), making "sex" become "posh and becks".