The most efficient use of expressing laughter in chat messages. Originally used only by Age of Empires II players, but it is now widely accepted (in their minds).

Sources:

"11 Equals 'lol'
111 Equals 'lmao'

1111 Equals 'LMAO'
11111 Equals 'OMG lol lol'
111111 Equals.. whatever you want it to be, for intstance: 'LOL ROFL LMAO WTF 11' "
- T90Official, Age of Empires II YouTuber

"11, Synonymous in use to terms such as "lol" or "kek", a reference to an audio taunt in the 1999 video game Age of Empires II with the purpose of expressing laughter or amusement."
Source: AoE2 Reddit user Hjoerleif

"11 Is a taunt from Age of Empires 2 that, when used in chat, plays an audio clip of someone laughing. It's basically lol before lol or the lol of Age of Empires 2 and all of it's players. 11"
Source: AoE2 Reddit user dimanor3
"Use 11 in ... professional conversation

Employer: before we begin this job interview, (tells joke).

Applicant: eleven.

Employer: eleven."

"Did you know that in the first Alpha Build (00.0503.0706) of Age of Empires 2, fishes icon were represented by a photo of Ian Fischer Lead Designer of the game. 11 11 11 😂😂"
by Photosynthesis_aoe March 10, 2021
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The number something is rated when it is beyond awesome.
Dude! That chick's, like, an 11!
by azclawson July 19, 2010
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1 louder, innit. The highest number in the world of rock. The ultimate rock n' roll number.

If you need that extra push over the cliff, turn it to 11!
1. These go to 11
2. 11 is one louder, innit?
3. My computer goes to 11
by Nigel Tufnel December 14, 2004
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A "10" that swallows
"damn man, I just found out that my sister is an 11."
by youneversawme October 4, 2007
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You gain an item, (11) Crazy bas*ard sword.
That's ridiculous, that's not even funny.
by Thegreatnick January 16, 2005
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If you are 11 right now then you are the nicest person in the whole world
because you're 11 right now
by Vesnipesni October 15, 2020
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A reply given for any question as a meme
"Hey man, what's the answer on the homework?"

"11"
"What color shirt is he wearing?"
"11"
by EthanTheProtato November 18, 2019
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