jeezly adverb used as an all-purpose intensifier US,1885 This variation on “Jesus” is a staple of language in maritime Canada.
I never saw such jeezly poor fishing! — John Gould, MaineLingo, p. 146, 1975
On one trip, we couldn’t even drive 20 miles to the Halifax airport without the whole jeezly car filling up with putrid smoke. — Harry Bruce, Movin’East, Methuen 1985