555-5555 

The universal phone number used in examples, so as to imply that it is not a real number. It is almost entirely understood that the number is not to be called, as it is "not a real phone number" If it is a real number, I feel bad for the guy who has it.

"hey dude text me at 555-5555"

555-5555 by yay balloons! December 13, 2009

triple 5 (555)

A razor blade or cutting material

Yo, I hit dat Mara(MS13)nigga wit da triple 5 son

triple 5 (555) by Pop$ May 15, 2005

555555555555 

555555555555 is a curse word not very commonly used, but when it is used it is 99% of the time Dota 2 players. The word is most commonly used by plebs who love to trash talk other players for various reasons.

What 555555555555 means is still unknown, but most people believe it means "Idiot dog".

Player 1: Hey man, could you buy some wards? The map is dark.
Player 2: 555555555555, putang ina mo, suka bitch!1

555555555555 by IsaiahRashad April 5, 2018

55555555 

An Egyptian insult, pronounced like CHHHHHH (like the grunting of a pig or a very great snort through the nose). Its a pretty bad insult and u can often expect a fight afterwards, exept u put an A7A afterwards, then it indicates that you are surprised.

Its written 555 because the 5 looks like the arabic letter خ which indicates the sound CHHH

Person 1: This shawerma tasted good

Person 2: 55555555 A7A, it tasted like ass

55555555 by Omarowich November 19, 2021

5555555555555555555555555555555555555555555555

means ''hahahhahhaahhahahahahaahhahahahahahahhahhaahaahhaahhahahaha'' in thai, because 5(ha) or written as ๕, spelled in thai as ห้า means ''five''

T. 555555555555555555555555 มันตลกมาก!
E. HAHAHAHAHAHAHAHAHAHAAH it is so funny!
5555555555555555555555555555555555555555555555

5555555555555555555555555555555555555555555555 by ten ten November 20, 2021

5555555555 

"5" sounds like crying in Chinese. means sad, crying, especially in IM chatting.

tom: i'll not come back home for new year, sister!
me: 555555555555555555555!

5555555555 by idonthaveanameyet February 19, 2009

5555555555555555 

death

guy 1: give 5555555555555555 to my enemies!
Guy 2: oh god

5555555555555555 by qwerty696969420 October 9, 2020