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A person, group, or object made up of several different elements that normally would not be put together.
"His ship had a very grabastic construction, due to the many spare parts he used to build it."

"You are the lowest form of life on Earth. You are not even human, fucking beings. You are nothing but unorganized grabastic pieces of amphibian shit."
by McTeague August 18, 2007
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adj. inclined to play grabass (bumble around and waste time in a group of 2 or more). grabass is an imaginary game of unsurpassed stupidity in which the object is to grab someone's ass or have your ass grabbed, or something.
because of grabastic turds like him, i have to work twice as hard.
by phooeyptooey February 13, 2008
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