key to key 

Is when your employers make you close the business late at night and expect you to be back early in the morning to reopen. The term key to key refers to using your key to lock the business and then using it again to reopen the lock without anyone else using it in between.

My boss is such a slave driver, she's making me work a key to key. If I'm lucky I will get 4 hours of sleep total

key to key by furiousnluxurious September 21, 2013

key to happiness 

Their is no key life's a bitch.

I looked up the key to happiness and I feel much better.

key to happiness by Learningfordummies101 December 19, 2016

key to the street

Someone that's been in the streets growing up

I got the key to the streets my nigga

key to the street by Raja2bad December 14, 2016

key to your gate 

It basically means I got the dick to your pussy.

Davon: Hey niya!
Niya: Yeah?
Davon: I got the key to your gate.
Niya: What!!??!
Davon: Hahaha!!!

key to your gate by That_girl_got_game/gang December 27, 2016

hit to key 

Critical hit. Used in the terrible translated Vietnamese version of Pokemon Crystal.

Croc SCRAAH!
HIT TO KEY!

hit to key by FranekGMD March 13, 2017

Key to my heart 

key to my heart....
Is literally... a key worn ....close to someones heart ....that you gave them... they carry the one and only key.... to open ur heart

Wow u still have the key to my heart around ur neck....its been a year...and we r both still waiting......

Key to my heart by PRETTY IN COPPER July 26, 2017

key to the city 

The key to the city opens every door ... Sexual term meaning "two in the pink, one in the stink"; i.e., two fingers inserted into the woman's cooter, and the pinky finger in the butt. The ring finger is kept folded over.

Sadly for the pinky finger, it doesn't get the pink!

Sam gave his girl with the key to the city because she was so awesome.

key to the city by BonesawJr July 14, 2006