1. The beginning of the M3 motorway just outside Southampton, UK.
2. In male orgasm, the point of no return.
Not the fucking doorbell! I'm at the Chilworth roundabout! Urrghh!
when a townie or 'chav' has line or lines shaved around his (or her) head, that is a 'chilworth roundabout'. Im not really sure where it comes from. I think it may be an insult .
Look at that chavs chilworth roundabout