Short for Eat(ing) Out. It is the equivalent of BJ for Blow Job (or Boob Job).
"Chris gave me the best EO yesterday."
"EO?"
"Eat Out"

"If you give me an EO, I'll give you a BJ!"
"Sounds fair."
by Chris Rodrig April 21, 2007
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E-eo e-eo e-eo eo
by \0_0/ February 18, 2017
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MW2 clan Acronym for "Eat Our Shit"
originated from EMS Acronym for "Eat My Shit"
"We just got pwned by EOS
by la llorona January 01, 2010
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the best friend anyone could ask for. extremely humorous. a mood-improver.
by spongebob March 03, 2005
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Killer dubstep producer, even tough he isn't well known he is much better then justin bieber and as soon as his remix of we found love is authorized..... justin bieber is finally dead

Serisouly? Justin bieber should of been dead years ago

Look up we found love dubstep eos
Justin bieber: oh shit, i'm dead

Skrillex: i'll take EOS's remix off soundcloud

Justin bieber: thanks

everyone else: EOS will kill you two!
by EOS4life December 18, 2011
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Eyes On Screen, used in chat when another person is watching over the shoulder, often used when cybering in secret
I couldn't type, EOS
by Mirror Spock September 01, 2008
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