Top Definition
A giant, fat, big-assed, hairy cat who lounges on your lap and is very difficult to remove from said lap.
I gave that Lap Slug a solid nudge. She barely stirred, but voiced extreme annoyance at the interruption to her peaceful nap. That "solid nudge" progressed to a solid push, but that Lap Slug wasn't moving come Hell or high water.
by VieuxScott May 04, 2010
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