Top Definition
umpa-lumping(oom-pa loom-ping) is a very verstile word

definition 1- swaying from side to side while you are an umpa-lumpa

definition 2- a word that is synonymous with slacking, faking, or lacking in some attribute.

definition 3- when a person is not acting logically and doing something stupid
definitiion 1: you see that girl walking, she straight umpa-lumping with she got a broken leg

definition 2: oh, he didn't turn in your paper for you. He is umpa-lumping hard core

definition 3: she jumped off the bus. she is umpa-lumping like a mofo.
by oom-pa loom-ping March 06, 2012

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