A 1-5 is a code name for a male that's affiliated with the street gang, the "15 Block Gangsters". A 4-5 is a code name for a female that's affiliated with the "15 Block Gangsters". The 4-5 comes from their call to greet each other saying, "1-5 1-5, 4-5 4-5".
by Skreetz December 20, 2018
A square of 5 by 5 blocks in downtown Toronto, bordered on the west by china town, east by the 'fruit basket', south by the lakeshore, and ends in the north leading into hicksville suburbia. The 5 by 5 is a place populated by a colourful circus of extreme rejects and freaks from all walks of life and if there is anything at all happening it will be happening in the 5 by 5.
If you want to see what's on in Toronto, go to the 5 by 5, if you hit china town turn around, but if you're seeing a whole lot of transvestites and men holding hands, you've gone too far.
by p@$$ing thr.ugh January 14, 2010