When you sayone thing, but you're too embarrassed to admit that you meant another, so you just sort of roll with it.
Person 1: "Dude help. I told Jake invited me to smoke because I said 'I like to weed' but I meant 'I like to read!' What do I do?"
Person 2: "Don't worry, we've all done a Freudian Slip and Slide at one point or another. I'm sure he'll understand."
Getting out a Slipe'n'Slide and covering it with lube instead of water. The person at the end lays legs spread eagle with their asshole stretched wide, another person then runs and slides down the lubed up Slipe'n'Slide head first into the wide butthole.
"Awh man Susan and I did the Slipe'n'Slide last night, got in passed my shoulders!! New personal record!!"
When you're nailing a skank from Tamworth who's had at least 6 kids and you slip out of her soggy minge and slide into her dirtbox and she doesn't bat a fucking eye.
You know that Debbie from Asda? She's right filth! Bit of wiff and she was on me like a tramp on chips. Ended up giving her a Stonydelph Slip'n'slide