25252

It's code number for Love Live! School Idol Project's Nico Yazawa's catchphrase.
In Japanese, you pronounce 2 as 'ni' and the 5 just represents 'co' so if you read it in the code word, it would be

2 Ni
5 co
2 Ni
5 co

2 Ni

Yesterday..

Love Live Fan #1: Nico nico nii~
Friend: Stop with the nico nico nii's. They're getting really annoying.

Today..
Love Live Fan #1: 25252
Friend: I have no idea what you're saying but it's less annoying than those nico nico nii's so that's fine.

by YohaNico Worshipper Vivian November 29, 2016

https:/www.urbandictionary.com/define.php?term=https%3A%2Fwww.urbandictionary.com%2Fdefine.php%3Fterm%3Dhttps%253A%252F%252Fwww.urbandictionary.com%252Fdefine.php%253Fterm%253Dhttps%25253A%25252F%25252Fwww.urbandictionary.com

How bored do you actually have to be to look this up?

"the people who search up https:/www.urbandictionary.com/define.php?term=https%3A%2Fwww.urbandictionary.com%2Fdefine.php%3Fterm%3Dhttps%253A%252F%252Fwww.urbandictionary.com%252Fdefine.php%253Fterm%253Dhttps%25253A%25252F%25252Fwww.urbandictionary.com is proof that I have underestimated the human limit for boredom"

by MyPseudonymThatsNotMyName September 19, 2022

In the Year 2525

Brain transplantation into other cloned bodies will be imminent. Humans will be able to live for several hundreds of years.

Spawned in a secret laboratory ruled by the government; this hidden technology which will be held private against the mindless herd public. sheeple

No trespassing please. Trespassers will be shot, survivors will be shot again.

Amen.

The rules still apply In the Year 2525. See how the lies and deceit can delude for power. Ruled by a secret totalitarian government. ;)

by Rude Crude but Earnest Dude December 13, 2020

2525whut & 0170486cool

He is one of the best tc3 players in history of roblox he won the rookdood,asianangelo,017,many more he also fought in the war against the taranny ruthless HMS to this day he and 017 was banned as they where a threat into claming global power over tcg community

2525whut & 0170486cool are one of the best player to fight the taranny liberal in a discord server call tcg

by 92938489292 July 19, 2020

2525whut

A service man who served during the army of the tc3 and is well honorable with his code and also fought in the war agianst RuthHms and also one of best player in tc3

2525whut

by 92938489292 July 21, 2020

25252525252525252525252525225252525252525252525252525252525252525225525252525

TOO MANY 25S!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Person: I'm gonna type 25252525252525252525252525225252525252525252525252525252525252525225525252525
Definition: TOO MANY 25S!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Person: well . I'm gonna do 10101010101010101010

by prb915FC January 6, 2021

%2525E2%252588%25259E

%2525E2%252599%25259E is when robots take over the world

(1: robots are tired of you so they decide to take over the world

%2525E2%252588%25259E

by Local Pillow July 8, 2021