slippery earls 

Refers to dress shoes. Usually men's dress shoes because of the slippery, leather sole.

Whenever you wear a suit you have to wear slippery earls.

slippery earls by Ron Collins December 27, 2007

Slippery Customer 

Someone who is devious, cheeky and very naughty.

Because of these almost superhuman levels of deviousness, the actions of a 'slippery customer' cannot be easily controlled. Such characters can cause complete carnage in many different situations (any day of the week).

A 'Slippery Customer' is certainly not a valued member of society. In some cultures, using such a term to describe someone is the deepest form of insult.

Who is that sneaking off into the cafe toilets?

I'm not sure, but i've heard he's a seriously Slippery Customer.

Slippery Customer by MarcusHasMassiveTekkers March 6, 2011

Slippery Marshmallow 

A slippery marshmallow is when you accidentally drop the entire roll of toilet paper into the toilet while trying to wipe your ass.

Dude i just finished taking the biggest shit, and i pulled a slippery marshmallow and had to use one of your hand-towels.

Slippery Marshmallow by DrowningInMagots April 18, 2008

Slippery Kenny

Act of Pouring 10W-40 Motor Oil in a girls anus, and then having doggystyle sex with her.

Wow Jim I think I should have used 10W-30 cause when I gave her the Slippery Kenny, she almost went balistic

Slippery Kenny by Dan386 January 8, 2009

slippery frisbee 

Ejaculating in someone's mouth while they have retainers or dentures in.

Hey Todd! I gave your grandma a slippery frisbee last night!

slippery frisbee by GuntherIII September 30, 2009

slippery boi 

One who knows the arts of being slippery

Patback is one slippery boi

slippery boi by Patback6969 September 25, 2017

Slippery Dip 

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.

Slippery Dip by Flash Ash January 2, 2006