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An animal that does not have a backbone. Insects, arachnids, starfish, jellyfish, octopuses, sponges, and corals are all invertebrates.
Invertebrates are the most populated animals on the planet.
by David March 06, 2004
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May 21 Word of the Day
n. The birth name of somebody who has changed their name. Most commonly attributed to trans people, but can be attributed to any person who has changed their name. (sometimes written as two words: dead name)

v. 1. To call somebody by their deadname.
v. 2. To out somebody's deadname to the public.
Don't call her by her deadname. She hasn't gone by that name in years.
by Canola Yogurt September 16, 2014
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2
(n). A spineless creature, lacking a backbone. Adapted for use in human society to describe someone who lacks character or resolve.
Have you ever met anyone who didn't have enough self control in an argument to keep his hands off his spouse? Invertebrate.
by DarkVic July 10, 2008
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3
A retard who doesn't know how to just goddamn fucking sit straight.
John! You're meant to sit with your ass, not your back you dumb fucking invertebrate!
by Tomato_Penguins December 08, 2020
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