When I first heard these words in their separate contexts, I swiftly administered the sound mocking they so clearly deserve. And then I started using them sarcastically, as a way of both ridiculing the words themselves and intentionally irritating the person I was addressing.
And then, at some point, the irony disappeared, and I found myself participating in exchanges like this one:
"Fuck. I just fucking stepped on my fucking sunglasses."
"Whatevs, dude. Just chillax."