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 pills.
a person who makes plans and/or says yes to anything when drunk, then at the next sober point in their life, changes their mind and/or retracts aforementioned plans or agreements
That drunken yesser, Bob, said last night, that he was going camping with us. Today he said he can't afford it.