4.5-tuple-fourth-cousin 

4.5-tuple-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and nine great-great-great-grandparents in common.

My 4.5-tuple-fourth-cousin is a good person.

4.5-tuple-fourth-cousin by ABGR June 9, 2021

4-5-94 

The Day Music Died.

Hey did you know Kurt CObain was MURDERD on 4-5-94?....

4-5-94 by Nirvana_Kdc_Ftw March 28, 2009

4/5/94

the day Kurt Cobain was killed/shot himself

R.I.P- Kurt Cobain 2/20/67-4/5/94

4/5/94 by in your honor 94 April 24, 2006

4 5 

fuck u hard 20 times

i want to 4 5 you
Please 4 5 me

4 5 by Jake Jenna March 23, 2005

` 1 2 3 4 5 6 7 8 9 0 - = q w e r t y u i o p [ ] \ a s d f g h j k l ; ' z x c v b n m , . / ~ ! @ # $ % ^ & * ( ) _ + Q W E R T Y U I O P { } | A S D F G H J K L : " Z X C V B N M < > ? 

Wow you are that bored that you went above and beyond and typed this congrats you get nothing.

I was bored and typed

` 1 2 3 4 5 6 7 8 9 0 - = q w e r t y u i o p \ a s d f g h j k l ; ' z x c v b n m , . / ~ ! @ # $ % ^ & * ( ) _ + Q W E R T Y U I O P { } | A S D F G H J K L : " Z X C V B N M < > ?

` 1 2 3 4 5 6 7 8 9 0 - = q w e r t y u i o p [ ] \ a s d f g h j k l ; ' z x c v b n m , . / ~ ! @ # $ % ^ & * ( ) _ + Q W E R T Y U I O P { } | A S D F G H J K L : " Z X C V B N M < > ? by Eternitys bordeom November 16, 2022

4-5-6 

A 4-5-6 is when a customer enters your department with product from another department expecting you to ring them up.

Yo, dis beeatch wanna me ta ring her dvd's and shiiit... and I told her to 4-5-6.

4-5-6 by Rob R. December 8, 2006

4-5 Rule 

If you partake in a cheating activity during the hours of 4-5 am or pm it is not cheating. If it starts one minute before 4 or ends one minute after 5 it’s cheating.

Her: Did you cheat on me?
Me: No it was during the 4-5 rule

Her: Oh good

4-5 Rule by 987654321!!!! April 29, 2019