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1.
when a family is so ghetto, that they can no longer afford mops, so they must "mop with the kids" instead of live with dirty floors.
dangnabbit, grab our son...the floor is filthy!

must we mop wit the kids, dear?

shut up
by zubawu January 20, 2005
 
2.
An expression often exclaimed while tagging a chick as you secretly video-tape the event. A phrase used to test the limits of dirty-talk during sex.
When I screamed out "Mop with the kids!" she called me a freak yet kept on riding my cock.
by Jay January 07, 2005