-noun: An overweight person who disappears for an extended period, then reemerges only to show off their slender new figure.
Most fat-a-pillars will never admit what they do with all that excess skin.

The average fat-a-pillar regains most or all of the weight within a year of losing it.

Fat-a-pillars tend to be nicer than girls who were born skinny.
by f'd January 2, 2011
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Referring to a woman showing off her breasts in a flagrant manner.
Cover those dirty pillars, this is a place of business.
by Shaunasweets May 22, 2019
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An aging UNSC vessel, and one of the smallest in the UNSC fleet. This ship, along with crew, Captain Keyes, and the Master Chief, crash landed on Halo. At the end of Halo, the starships fusion reactors go supernove, sterilizing the land, and creating a HUGE crater in Halo. Un able to with stand the forces exerted on the new weakpoint, halo breaks apart.
Marine-"THE AUTUMN, SHES BEEN HIT!"
by Mustache Man February 27, 2005
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A poop log so long and sturdy that the tip pushes against the bottom of the toilet bowl while the upper end is still inside you. Depending on how much poop you still need to unload while dealing with a pillar, it can be problematic and even painful.
I prefer toilets with deeper bowls to accommodate my log. That way the tip won't reach the bottom and risk causing a poop pillar.
by Rabbi Jimbob August 9, 2015
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Someone who, having intimate knowledge of a company, takes action to destroy that company from the inside.
A certain corporate bookstore treats their store-level employees like they are worth less than dirt. JoAnna, a long-time employee of said bookstore, is sick of corporate abuse and no longer cares whether or not she receives minimum wage to sling coffee. She's the fifth pillar - she will do everything in her power to destroy this bookstore with the knowledge she has as an employee.
by Chaucer October 13, 2013
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The smallest cruiser in the UNSC fleet, the Autumn is a Halcyon-class warship under the command of Captain Jacob Keyes. After the Battle of Reach, the Autumn made a blind lightspeed jump in an attempt to lure the Covenant away from Earth, and arrived at the fortress-world Halo.
The Pillar of Autumn fired several cannon blasts at the Covenant cruiser.
by Militant Liberal May 1, 2005
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A life pillar is like a life lesson, except life lessons aren't serious.
Austin: Wow, that's a life lesson right there.
Ethan: Nah, it's far more important than a life lesson, that right there, is a life pillar.
Austin: Aw jeez, you got me there.
by derethebear February 27, 2019
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