1 definition by m.boat

Top Definition
Any measurement defined by the width of three fingers.

Most commonly used as a measurement for the amount of alcohol for one to consume, but is also a lesser known medical term.
1. How much of that beer are you going to scull if you get this wrong?

...I'll put a ritchie on it

2. The doctor used a ritchie to check for inflammation
by m.boat February 26, 2008

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