2
"i'm back", normally used after brb
ack: brb
dudley: k, l8r
ack: imb
by dudley December 06, 2003
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4
"Indian Mound Boys"
The boys that live in the Indian Mound neighborhood in Islamorada. They party all the time, play sports, are BEST FRIENDS, and claim to be badass.

PL, Patrick Naughton, The Angel boys, William Bassett, TJ Sabalka, Travis Sebastian, Eckbloms, Tyler G, Mikey Hampson, There are more..
"Hey Shelly what'd you do friday night?"
"I partied with the IMB!"
by coreyshmoreys April 15, 2009
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5
It's my birthday. IMB every year on 2nd September
When IMB, if there is a party people sing Happy Birthday to You to me.
by Criostoir Hulme September 02, 2005
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6
imb is an acronym for "infected mosquito bite"
very common to be bitten by mozzy and uh oh! its swollen
"hows sandra doing these days,?"
"not too good sally, Ive heard she's got and IMB"
via giphy
by jemiinem July 06, 2018
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