.1. 

Popular add-on to the end of your graffiti crew's(squad, mob, posse, clique, gang, etc...) acronym name. Identifies your squad as number one (or at least u think so). Popularized on the east coast (philadelphia area) in the 1990's. Commonly written on walls directly after the name of your crew. Not designated for strictly graffiti gangs, but also written by gangs that graffiti (these are two very different groups of people).

BSB.1. (Broad Street Bullies #1). MGM.1. (Mayfair Graffiti Mob #1). TBT.1. (The Best Thieves #1). JMA.1. / TSN.1. / AIA.1. / MFR.1./ etc... (Names given are fictional, but illustrate how this add-on is used.)

.1. by kingkiroskerockdoe September 10, 2010

:-1 

Used to represent a sly grin or a smirk in an Instant Message or SMS conversation.

DeliciisB4b3: Ur sooo hottt omg
HottguyF00tb4ll: I no, rght? :-1

:-1 by .Storm July 7, 2008

¹ 

tiny number

Person1: ¹
Person2: wow that is a small number

¹ by akselly March 12, 2021

!!!!1 

When you are so excited or so angry that you lift your hand off the shift key to early and accidentally put a "1" at the end of your numerous exclamation marks.

Mother: GET HOME NOW !!!!!!!!!!!!!!!!!!!11
Child: Ugh okay!

Jenny: I cant wait to finally have sex with him!!!!!!!!!!111111111
Dan: Um I am you ex why are you telling me this?

!!!!1 by iusethislongassnameforareasosn June 15, 2010

!1 

Common typo among people who like to insert many exclamation points to the end of a sentence, caused by accidentally releasing the Shift key before the 1 key, and sending the message without previewing it to realize the typo had been made.

Often used on purpose to make fun of such accidents and the people who make them, or as part of leetspeak.

A similar but less-joked-about occurrence is the tendency to insert backslashes after a string of question marks.

I DON'T BELIEVE IT!!!!!!!!!!11111

ARE YOU JOKING????????///

!1 by CtrlAltDestroy September 14, 2005

1 

The IQ of President George Bush.

George Bush has an IQ of 1.

1 by Mobius92 May 11, 2006

1* 

A term originally created by a sergeant with the Los Angeles Police Department SWAT Team. Designed as a reminder that in fact you only have "one ass to risk"(1 as-te-risk), so you'd better be careful.

Don't get yourself shot tonight, you only have 1* and a whole life ahead of you.

1* by J. Malik October 17, 2005