Originally made up by a secondary school in the south of Dublin. Though "ER" quickly spread through out Dublin. Mostly used by "south-siders" as a dismissal or slag. May have a diffrent(un specific) meaning in another context! Definition:Emotionally Retarded
by Ashling O'C October 22, 2007
 Get the er!mug.
Get the er!mug. by bob the builder December 28, 2004
 Get the er?mug.
Get the er?mug. by The freakozoid June 10, 2009
 Get the ermug.
Get the ermug. 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.
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 28, 2006
 Get the ermug.
Get the ermug. by internet.rubbish February 20, 2017
 Get the ERSmug.
Get the ERSmug. -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.
-A new age code word for shoplifting at Wal-mart or Bookstores.
by rweiop December 24, 2008
 Get the eremug.
Get the eremug. 