Lyric discussion by Dubious Merit 

Cover art for Peaches lyrics by Stranglers, The

As an American person, I would like to mention something I had to look up: it's spelled "charabanc" but pronounced "charabang," and it's basically a sightseeing/tourist bus, open-air, kind of like a trolley.

He's basically joking that he'll have to stay at the beach (with the women) all summer because the tour bus has left without him.