Looking for the perfect simile/metaphor..

[Guest]

..to describe the feeling of being trapped underneath a breaking wave. I would roll and tumble like a…

[Bernadette]

Sock in a washing machine.

[Sammy]

I'm trapped in the turmoil of churning water. I'm like a stain on a dirty little pair of underwear, ready to dissolve in a washing machine.

[Carrie]

'I would roll and tumble like a plastic bag being blown along by the wind, flung and catapulted in every possible direction.'

(and no probs if not useful, or maybe it might help spark additional ideas! Also, 'flung' and 'catapulted' are probably a tautology, oops! I just liked the way they sounded together!).