Define 0000 Meaning

0000
Midnight, aka "four balls". In military time, this is the first minute of the day.

"What time is it?"
"0000."
By Janot
0000
The password for the most retarded persons phone.

Man 1 whats your password
Man 2 0000
Man 1*breathes in* BOI
By Minnie
U+0000
The Unicode null character, , which often terminates a null-terminated string. Its mere presence in a string (outside the end) will always cause software bugs. I tried to include the character itself (faulty PDF OCR from an underlined “가”, confirmed through a Unicode converter), but it would always cause UD to error (obviously).

I used empty brackets because I tried to insert the actual character, but Urban Dictionary would always

This character U+0000 is impossible to get into a string, and if inserted into a URL by %00, can unlock a security vulnerability called null byte injection
By Noellyn
000-000-0000
A number that appears on telephones mysteriously at night when no one is around.

Usually it's a government spy trying to get a hold of you.

"Hey, that's wierd... I just got callled by a number 000-000-0000!"

"Don't answer, it's a government spy!"
By Daphene
0000
the time resets into a brand new day, and it will be better. it is 0000 and it time to be happy and forget all the tears.

sorry for appearing and bother. I promise I'll accept the truth and be happy tomorrow. 0000
By Darell
0000
the time resets into a brand new day, and it will be better. it is 0000 and it time to be happy and forget all the tears.

sorry for appearing and bother. I promise I'll accept the truth and be happy tomorrow. 0000
By Siusan