A Yosser's Dozen is 9, three less than a standard dozen, and four less than a baker's dozen. The oldest source for the expression "Yosser's dozen" dates to the 21st century in one of Texas' largest suburban areas. Yusuf Khan was known to exclaim, "4 Dozen? That's like 36!", creating the phrase, Yosser's Dozen.
Hey dude, pass me about a Yosser's Dozen worth of eggsbro!
Oh man, I overdosed on a Yosser's Dozen of marijuana pills.
I bought a Yosser's Dozen loafs at the bakery yesterday.
Mush 1: Get in the jeep I'm going to kill that cunt who was mouthing in the peever last night.
Mush 2: Not a problem. Two minutes I'll just get me yogger.