IM 

Instant Message or someone who can't be bothered to use an apostraphe for "I'm" (I am).

"some weirdo just imed me"
"im so lazy, man"

IM by j00l.i.e April 26, 2003

im 

1) (n.) "Instant messanger"


A programme, usually downloadable for free, that allows people to chat in real-time. Many have integrated features such as file sending, two player games, pictures and drawing boards. They are basically an evolution of electronic mail that allows people to get closer to each other. The most popular IM programmes are aim, msn messanger, yahoo IM and icq

2) To use 1) to contact another user of IM's.

3) Mis-spelling of I'm.

1) I need to get a better IM

2) IM me tonight.

3) OMG IM GAY!!!!!111!2!ONE

im by Gumba Gumba February 28, 2004

IM 

n. An instant message. IM does not imply the use of either AIM or ICQ.

v. To send someone an instant message.

Did you get my IM?

My sister IMed me last night.

IM by The Grammar Nazi December 9, 2001

IM 

Intramuscular, as in Instramuscular injection of a drug

"Oh shit, Danny is ODing on Heroin...let's take him to the hospital for an IM injection of Naloxone"

IM by WSB15 April 11, 2006

iM 

Short for iMessage. Designated with a capital 'M'.

To send a message to someone via Apple devices running iOS 5 or later. It could be a message to send text, videos, locations and contacts.

"Did you get my iM?"

iM by @SherwinNgo October 11, 2011

IM 

noun.
1. a message that is sent over an online messaging service

verb.
2. the act of sending or receiving a message over an internet service

1. I sent an IM to Tommy to tell him about the party.

2. Eugene IM'ed me to tell me about his lame party.

IM by metman85 November 12, 2005

IM 

A name for special ed niggas someone made in our school.

ehab is someone you could call an IM

IM by xxxsmellysalmonxxx69 January 11, 2020