1 definition by spunko2010

Top Definition
Chiefly British English.

That one person in your life who is like a sibling. You'll do anything for them, literally. They understand you, you understand them and you're always happy when you're around them. You just click.

Similar to best friend, but you can only really have one best mate, otherwise they are probably just good friends.
My best mate is like a brother to me, and I hope we are best mates for life.
#friend #best friend #pal #brother #friendship
by spunko2010 October 23, 2006
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