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1.
To be said or shouted when somthing/some one is is better than awesome, so much so that said item could well be compared to that oh so special variety of canned awesomness.
all canned awesomness comes in cans with ringpulls, as not everyone carries a can opener with them.
Created by El Tom of Barton
Wow, that was awesome in a can!
by shuriken October 28, 2004
 
2.
A catagory of awesome which is without a use by date and will always be awesome no matter how long since you last thought of it. Everytime its opened it has a fresh awesome'ny zest.
Have you seen 'Shoot Em Up'? Its awesome in a can.
by SpyBoy March 03, 2008