mop

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mop

1
an implement with a wooden handle and a head made of twists of cotton or a piece of synthetic sponge, used for polishing or washing floors, or washing dishes

mop

2
(in various parts of England) an annual fair at which formerly servants were hired
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

MOP

(Millionaire On Paper) People who have wealth tied up in company stock options, which cannot be exercised until a certain date. During the dot-com boom, tens of thousands of MOPs were created, but many unfortunately never cashed in before the stock became worthless. See also MOPS.
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References in periodicals archive ?
There will be even more sensors in Scooba, the Roomba floor washer scheduled for introduction late this year.
The Seneca Castle, N.Y., company has developed a system incorporating three machines, a manure remover, floor washer and sand spreader.
/ 2 The Scooba Robotic Floor Washer, launching from iRobot in December, vacuums, scrubs and dries hard floors automatically.