Popularized at a 1942 state fair, it's a frankfurter dipped in batter & deep fried
In Australia, a hot dog sausage on a stick, deep fried in batter, is known 
as a Dagwood... [DOC] [TLE] CORN DOG A STANDBY AT TEXAS STATE FAIR - NYTimes.com [PAR] Oct 12, 1983 ...