Used to describe whether an item is detachable or not.
I wouldn't bother trying to get the lid off that tomato sauce bottle. I've already tried and it's simply not cumoffable!
by Philip Newborough October 10, 2007
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The act of cleaning one's brother's semen from a computer desk.
"Eww! Today I had to wipe my brother's cumoff my computer desk!"
by punkie078 November 17, 2004
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