flipper-slipper 

When your tube sock(s) hang off the end off your foot 1/2 way and they fop around.

When children's sock(s) slide/fall down.

NOT to the point of falling off though, just 1/2 way.

'When I got out of bed this morning my socks were flipper-slippers!'

'That baby's got on a flipper-slipper.'

'Flipper-slippers are fun to slide on the kitchen floor in!'

flipper-slipper by Patsea Chema October 1, 2011

skipper flipper 

When a woman is bathing or swimming naked and her labia ebbs and flows with the current of the water. Usually occurs in a woman with an above average size labia.

Beth and Tommy decided to go skinny dipping at the lake. They stripped down and entered the cool morning water, wading out until it was up to their waists. From nearby, they heard an old man laughing. They turned and looked real quick and noticed a man on the shore fishing. He said to them, "Holy shit girl, you have some mighty long vagina lips. You got a skipper flipper going on there." Beth screamed, Tommy laughed with man.

skipper flipper by Nutzen YerMouf June 16, 2017

Slippery Flipper 

Verb
To insert any part of one's foot into a woman's vagina.

Noun
A sexual act whereby one partner inserts any part of the foot into a woman's vagina.

A description of a woman's vagina while there is any part of a foot inside it.

"I hope you washed your foot before you gave her a that slippery flipper."

"Does she love you enough to be your slippery flipper?"

"I slipppery flippered her all night."

"They got kinky in bed and he put on the slippery flipper."

"He jammed his foot in her vagina, wearing it like a slippery flipper."

Slippery Flipper by hulk smashed January 23, 2013

flapper slappers 

the beef curtain like flaps of atrocious leg skin of a flappy slappy. Most likely trying to be distracted from by using the horrible boob job that was bought along with the wardrobe from the trailor park.

'Those overly priced orangutan titties definetly dont distract from those flapper slappers.'

flapper slappers by snappy_holla August 12, 2012