I fuckin doubt it
You say it when someone’s story is so dumb it makes your brain feel like it’s been run over by a bus full of raccoons.
I fuckin doubt it. You said you could live without sleep? I’ve seen you fall asleep in the middle of a sentence.
I fuckin doubt it. You told me you could swim across the ocean? I can’t even swim across the pool.
I fuckin doubt it. You said you could eat a whole pizza in one bite? I’ve seen you struggle with one slice.