Slippery dip is slang for slide used in Australia; often located in playgrounds.
Man 1: Hey kids want to go to the playground?
Child 1: Yeah, I love the see-saw.
Child 2: No.. I want to go on the slippery dip, It goes forever at the park.
The slippery slope fallacy but escalated. One shall fall down the path quickly and unequivocally. Their mind subdued by the sheer heaviness of the thought never to return to a normal state of consciousness.
Careful that's a slippery dippery slope you might fall. Don't let "them" dip into your mind.
A sex maneuver where a man's penis is covered in at least two different lubricants then inserted in a woman's anus then vagina. Once in the vagina the wee wee schnitzel is slapped around often making funny noises.
Michael: "Hey man, how'd it go with Stacy last night?"
James: "Went pretty damn good, gave her the ol' triple dipple fudge dipped salmon slapper."