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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To mess something up - especially anything of a technological nature - in that particular Mom-style. A polite way to say that your Mom fucked something up.
"You mother totally Mom-ed Up the computer - she got frustrated and just started press every button and key possible. "

"The sprinkler system was completely Mom-ed Up - she turned every knob in every way, and now the whole system doesn't work."
by SluttyKitty June 22, 2009
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A mother figure to a child that is not married to the father.

A mother figure that stepped-up to the plate.
This is my dad and step-up mom, they take care of me.
by BoxedCheri February 16, 2017
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The act of having your pants constantly fall down low enough to have Plummer’s butt especially at the worst possible time
Pull up your pants you are totally mom-ing it up over there.
by Pink drink's constantly September 02, 2019
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To do the things that only a mom can do.
I need to mom up & clean this pile of dog poop on the carpet that my son got a wiff of while torturing his sister by attempting to put her face in it then proceeded to vomit on top of said poop.
by SexyNurse August 07, 2017
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