Again NE England (60s, 70s) in Hull we called it a crogger. I don't recall there being a related verb, it was just "Give us a crogger" or less frequently "Jer wanna crogger?"

Oddly I don't think we had a word for riding on the carrier at the back that many bikes then had, though it was a common-enough activity. Most of our bikes had too many attachments for handlebar jaunts.