A dozen is 12; a baker's dozen is 13. By extension: however much is in a shitload, a baker's shitload has one more. See metric shitload
I expected a shitload of trouble, but not a baker's shitload of trouble.
by Secret Agent Man September 18, 2003
1 more definition
A large amount of a given item (usually baked goods) ranging from 26 to 130.
Hey homie we need a Baker's Shitload of chicken wings, I got mad munchies.
by Hally13uk October 05, 2011