When a person acts in a silly,
weird, stupid,
retarded, and/or erratic way that makes other
people feel cringed, awkward, and/or uncomfortable.
Tyler is the gumpiest dude I know.
Hey, he is being
crazy right now I've never
seen them be so gumpy in my life.
Last night at 3 a.m. I was being so gumpy and
weird i'm sorry.
Out of everyone here you are the most gumpy.
