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To do something to something that normally a mom would do; or to emulate a motherly activity
Wrapping up leftover pizza from a frat party in nice individual plastic wrapped packages, Tom heard his roommate holler: "Hey man, you really mom'ed that up!"

Or

As Christy served up homemade cookies and milk to her friends, they cheered: "Mom it up!"
by progin September 13, 2010
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