Chinese Baker's Dozen
A Chinese Baker's Dozen is 11. This is because the chinese are known for always wanting to bargain to lower costs or number of goods even if this amount is immeasurable and/or insignificant to both parties. This is not a derogatory term but simply a unit of measurement.
Joseph: "Hey Remmi, what's the time?"
Remmi: "It's a Chinese Baker's Dozen past 6."
Remmi: "It's a Chinese Baker's Dozen past 6."