An abbreviation for the endoplasmic reticulum. May be heard among success-driven high school students studying for the AP Biology exam.

It's also an acronym for emergency room.
The ER can be a televized show or an essential part of life; either way both are used as the acronym.
by C. Darwin July 27, 2006
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Emotional Road Show
The name of the band Twenty One Pilots tour.
"Hey are you going to ERS?"
by internet.rubbish February 20, 2017
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short for "every"
we smoke blunts, all day, er' day.
by droo August 25, 2003
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-An ugly tall, gangly, girl who resembles Jar Jar Binks and has a lip that hangs. She also dances very strangely and is too nice.

-A new age code word for shoplifting at Wal-mart or Bookstores.
-Ere is so fucking annoying.

-Let's go ere some pink grapefruit body wash at walmart!!
by rweiop December 24, 2008
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Someone beautiful, nice and talented in many ways
I wish I was ER
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another name for those dirty Chavs
Louise Farrington is such an Er!
by Leroy Larger February 7, 2005
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used for texting/online chat "er" is an abbreviation for "eyeroll"; when someone does or says something that makes you roll your eyes you "er" at them; it can also be used in place of the term "oh, whatever"
"she said what?" er

"whatever" er

"that guy was so sexy.. "
"the bald guy, gross?"
"er"
by SwtPnkKty November 27, 2011
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