Adjective - Poetry created in the style of Beck - in the same way that some novels that created in the style of Charles Dickens are Dickensian.
That crazy contrasting song is so Beckensian!
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."