Canadian slang
1;
A way of saying hey to your friend/buddy.
2;
Being irritated by someone and trying to show it.
3;
Not as common, but being sarcastic to someone or imitating/mocking them.
1; "Eh bud! How's it going? Haven't seen you in a while, let's get dickered tonight..."
2;"Eeeeehhhhhhhh bud. Watch where you're going."
3;"How's that girl you've been seeing, eh bud?"