A term used to refer to simple minded people that siphon gas from other peoples cars using a hose. The gas money saved can then be used to buy more beer and back-bacon as well as fuel for the Coleman Stove.
Also used as a derogatory remark when refering to an idiot.
Made popular by SCTV's Bob and Doug Mackenzie on the Great White North show.
Come here hoser, I was just kidding.
Used as a negative, it basically means "idiot." When used positively, it's a phrase of light endearment.
In both cases, it is most effective when the subject(s) displays stereotypically Canadian attributes.
POS - "They drank all our beers and smoked all our smokes, but took the ski-doos to get more before the hockey game started. What a bunch of Hosers."