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.)
by kingkiroskerockdoe September 10, 2010
whoa, did you see that and 1 shirt on that rap video, i gotsta have one now cuz, i want to portray a lifestyle i will never have, i hope they take WIC
by sean-tei October 20, 2003
by Oweethea April 19, 2021
by Soggiest B October 29, 2018
Adding (usually) invisible points to someone's hilarity score. Usually when a sarcastic, but hilarious, comment is posted.
Poster 1: "in related news, the homeless guy that hangs out down the street from my office just announced children are in danger from bugs that will crawl in their ears and "infect them with the debbil.""
Poster 2: "+1!"
Poster 2: "+1!"
by The Man Under The Chair January 14, 2009