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A guarantee that isn't really a guarantee. Usually consists of "I'll be damned if it doesn't work," "if it breaks, you can call me a son of a bitch," and "if it breaks in two, you can keep both the pieces!"

Comes from the days when unscrupulous Oklahoma used car dealerships would give unscrupulous warranties that were worth the paper they were printed on. These were the days before lemon laws.

The term has been popular in Texas and Oklahoma, but has some limited nationwide use.
Products made in China come with the Oklahoma Guarantee.
by therealelizacat December 14, 2013