Was heißt »holpern« auf Englisch?

Das Verb »holpern« lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Synonyme

rütteln:: shake
schütteln:: shake
schwanken:: alternate; fluctuate; hesitate; pitch; stagger; sway; totter; vacillate
stocken:: falter; halt
stolpern:: stumble
stoppen:: stop
stottern:: maffle; stammer; stutter

This post is worth a bump!
I happened to bump into her on the train.
I waited outside, thinking that we might meet bump into each other.
I happened to bump into her in the street.
Tom gave Mary a fist bump.
Fist bump.
Astronauts are weightless and can sleep in any orientation. However, they have to attach themselves so they don't float around and bump into something.
Tom has a large bump on the back of his head.
The boy has a huge bump on his head. No wonder he cried so much!