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.
Emotional Road Show
The name of the band Twenty One Pilots tour.
Someone beautiful, nice and talented in many ways
I wish I was ER
another name for those dirty Chavs
Louise Farrington is such an Er!
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"