Old slippers 

The genitals of a past significant other that after consideration and comparison are the ones you love the most

"My girpelfriend said she missed my old slippers"

Old slippers by Duck footed clydesdale June 11, 2016

Old slippers 

When you can't let go of your past relationship. Even if you have the perfect person in your life.

"When we have an argument, you always wait until I go to sleep to write to your old slippers so you can complain and wait for that old flame to make you think you're perfect..."

Old slippers by BlackWidow 2017 May 31, 2017

The Old Slippers Gang 

A group of three people, who pull into a newly built neighborhood, and smoke weed in their cars. Most commonly found driving a getto 98 Buick Century, or a broke ass 2001 Toyota Avalon XL, with the headliner hanging down.

P1: Yo, we gonna have the old slippers gang meeting tonight?

P2: yeeee

P3: Dude you don’t even get high anymore, stop waisting my weed.

P2: Women are to be seen, not herd.

The Old Slippers Gang by MattyB69 November 2, 2018