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1.
m8
shorter way to say mate, especially over the internet.
"me and me m8s got pretty pissed."
by International Bad Boy September 07, 2004
 
2.
m8
word for mate
g'day, m8
by John June 11, 2003
 
3.
m8
friend, companion
soi m8
(Apology)
by Ben February 11, 2004
 
4.
m8
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
 
5.
m8
It means "mate"
Used in chats and in forums, that slang is useful
Me: hi m8.
Jonh: hi m8. how are you?
Me: i'm fine, thanks m8
by F4T4L_3RR0R_ April 12, 2009
 
6.
M8
1) Australian slang, short for mate.

2) A metric screw thread.
3) Motorways in GB, Ireland, Hungary, Armenia, Russia and Belarus.
1)"G'dAy m8" - " h0w r u doiN m8?" - "y@r m8, i neEd a M8 scr€w, m8" - "co0l m8, i'll br!ng u 1 0VeR da M8"
by Luckyleprechaun February 19, 2014
 
7.
M-8
A robot with the primary function of friendship.
'Have you met my M-8? He's wicked shiny!'
by Lonka-Troka. May 12, 2009