1. my way or the highway - Noun
2. my way or the highway - Phrase
my way or the highway
(chiefly US, idiomatic) An expression suggesting an ultimatum which indicates the listener(s) will either conform to the desires or teachings of the speaker or else be excluded.
Synonym: (vulgar) fit in or fuck off
Nuance has been thrown right the hell out of the window and everybody is full of “My way or the highway!” Source: Internet