>>106378292
Heck is a substitution for hell as in "what the hell" and is way way older, like 19th century old.
Friggin, Frickin as substitutes for fucking was already used in 80's, example movies for "boomers":
The Terminator (1984) (friggin)
Ghost busters (1984) (frickin)
Die hard (1988) (frickin)
something newer:
Friends (1994-2004) (frickin)