Uphill

Tortured Taught some Germans today, we ended our class with jokes, because English humour is all about wordplay.
One of the students: An airman, an army guy and a sailor went out for a drink. Who drove?

The army guy, because he had the khaki...

I returned fire with my favourite (i.e. I can remember it) Where do you weigh a whale?

A whaleweigh station...