Top Definition
A game played on long car journeys. The aim is to spot fat men on motorcycles.

Once you spot one, you shout out 'Fat man on a Motorbike'.

This game can pass time, and winning can be very satisfying.
Joe: 'FAT MAN ON A MOTORBIKE!'

Darren: 'Yass! Let's start a new round.. cannot wait!'

--

Kid: 'But I can't be fucked going on a 2 hour car journey to see a wretched old shrivel in a hospital bed!'

Dad: 'Quit whining. Play fat man on a motorbike with Garry or something. And don't talk shit about my maw.
by Har-Har August 17, 2010

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