Washingtonne

Washingtonne: noun. In the same way that a baker's dozen comprises thirteen instead of twelve loaves of bread, a washingtonne is 1050 kilograms of washing to do rather than 1000. The history of wahingtonnes is quite similar to that of the baker's dozen, which traces its origins back to the need to ensure a very low probability of selling only eleven faultless products when the customer payed for no less than twelve. In a similar way (though converse in terms of the customer-service relationship), a person would give a whole washingtonne to a dry cleaner in hopes of receiving at least a regular tonne of washed clothes back.