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 eggs bro!
Oh man, I overdosed on a Yosser's Dozen of marijuana
I bought a Yosser's Dozen loafs at the bakery yesterday.