A person resembling or having the likeness of somebody with down's syndrome. Can include people that actually have down's syndrome.
I was on tinychat the other day and oda, this extra-chromosoid starts ranting about "fail males" again.
by Harry Be-Hole February 19, 2023
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Someone who has visited a different star than the one they were born near.

No one from Earth has achieved this yet.
The Extra-Solar-Tourists decided to invade Earth and enslave the population for the fun of it.
by Logical_OverLord July 24, 2021
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1. A terrified apology.

2. What you say when your gf/bf is furious and you've really f'd up.
I'm extra special sorry, please don't kill me and dance on my corpse!

I'm extra special sorry I was a lyin' cheatin' scumsucker all these years, dear.
by ergolynn February 20, 2010
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A fart that not only can you taste but is so beefy you have to chew it.
This old guy on the bus let out a "extra beefy" that I chewed for 5 mins of pain and cried later.
by Steveascub April 14, 2011
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The most devastating of any yo or ur insults, possibly deadly
Tommy: hey Leo, Yo mum gay
Leo:Yo chromosomes got extra homes
Tommy:*ceases to exist*
by Leo bergrauten April 1, 2018
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