Stands for in-ear monitor. A type of earphone that inserts deep into one's ear. Can be either dynamic driver, or balanced armature-driven. They have a tendancy for great isolation without the need for active noise-cancellation
Tom: Wow these Shure 535s sound great!

*gets hit by bus*

Jude: Damn, those must've been some great IEMs
by AndrewBronard October 5, 2013
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ieme is a beautiful and sweet girl, she has a lovely personality and she has a lot of friends, she is very social and has 1 best friend.
wow ieme i wanna be ieme's friend she is so kind
by neinow September 19, 2022
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The type of person who constantly, involuntarily, responds to messages one message behind everyone else - especially if the subject has already shifted.
Person A: Let’s go to the mall
Person B: Nah let’s go to the movies

Person A: Okay what movie should we see?
Person C: What should we get at the mall?
Person A: Oh great, the Internet Explorer Messenger (IEM) is here
by MelanieBanks July 27, 2023
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The type of person who constantly, involuntarily, responds to messages one message behind everyone else - especially if the subject has already shifted.
Person A: Let’s go to the mall
Person B: Nah let’s go to the movies

Person A: Okay what movie should we see?
Person C: What should we get at the mall?
Person A: Oh great, the Internet Explorer Messenger (IEM) is here
by MelanieBanks July 27, 2023
Get the The Internet Explorer Messenger (IEM) mug.