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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 13 Word of the Day
lil mad is like big mad but the opposite, you mad but not mad to the extent of pullin somthin
"look im sorry i ate your food"
"is cool im just lil mad"
by lilbabiey November 30, 2018
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(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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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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