A group of horses.

Specifically a combination of ‘gallop’ and ‘lump
by nosirnothankyou September 25, 2018
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The noise our cats make as they run around like mad for no apparent reason.
Is that an army of elephants dancing in an orgiastic drunken ritual upstairs? No. That's just Squishy and Waffles gallumping through the living room.
by Pooter03 February 4, 2016
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a bootilicous feeling pronounced on a person addicted to sex when in a room ripping a bong with persons from retirment home or when in a state of foggy mind thinking you're a cougar rather than a young woman
guy 1: hey what's up
guy 2; i don't know i'm gallumpousing right now, get me out!
guy 1: thats not healthy!!

girl 1: hey girlie what you doing?
girl 2: scouting out sexy young men
girl 1: you're being gallumpous!
by a very gallumpous woman February 13, 2010
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