look up any word, like smh:
 
1.
The Canadian version of fuckin' A. Used as an expression of excitement, agreement and/or approval of an unexpected situation.
Suppose you win a good game of poker while bluffing, a likely response would be "Fucking eh!!"
by Natalie Elyse May 25, 2008
 
2.
The Canadian version of fuck, used when very pissed off at something. Not to be confused with Fucking A
Alex: Jimmy just cancled coming to my party.
Brent: Fucking eh! Why is he so lame?
by Rockasuraus June 10, 2014