It's the short form of mate which is usually used in chatrooms.
hey,m8!how are you?

I'm fine,thanks.what about you m8?

i'm great!
by Dragonom March 12, 2009
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A slightly shorter way of saying mate, probably on the internet.
by CokRubbin May 19, 2015
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irc is all about sounding l337 and since everyone there are software pirates they refer to each other as m8 rather than buddy or pal.
how you doin m8
mornin m8
thx m8
by Gauntlet3h August 14, 2003
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An abbreviation for mate. commonly used when talking to people or friends.
Can also be used aggressively by these red haired poms known as Australians.
Hey m8, howsits going
yo whatsup m8?
you good m8?
by OfficialDictionary :) February 6, 2023
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m8 means mate it is just that when u say m and 8 it sound like mate.
by ghost9115 May 25, 2017
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