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(n.) The asshole who takes the last of something and does not replace it or notify others that it needs to be refilled.
Jake was a real lassthole when he used the rest of the toilet paper in the bathroom. I had to waddle to the closet to get a new roll.

*During a party*
Angela: "Why didn't you bring the chips?"
Amanda: "My brother was a lassthole and ate them all."
by Kristophsky October 07, 2013