Unfortunately the term Eh! can have a multitude of meanings.
Some more commonly used terms.
Double-Double: a coffee with double cream, double sugar (especially, but not exclusively, from Tim Hortons), recently added to the Oxford Dictionary. Triple-triple and four-by-four (less common) are three and four creams/sugars, respectively. Rarely, one can hear a request for a "Gretzky", nine cream, nine sugar after Wayne Gretzky's jersey number of 99.
Forty pounder (forty ouncer) â€” a 40 oz. bottle of alcohol
Half-Sack: A six pack of beer.
Mickey: a small (13 oz.) bottle of liquor, shaped to fit in a pocket, much like a hip flask. Also fits conveniently alongside the calf of a cowboy boot or rubber boot.
Poutine: french fries covered with gravy and cheese curds.
Sixty-Sixer: A term for a sixty-two ounce (1.75 L) bottle of liquor (from the old 1/2 U.S. gallon size, 66.6 imp fl oz).
"Take Off": expression of disagreement or command to leave, similar to "get lost" ("Take off, you hoser!"). Used by TV characters Bob & Doug McKenzie.
Twenty-sixer or two-six: a 26 oz bottle of alcohol like vodka etc.