What is "refreshers"

Usage examples of "refreshers".

We lost all our refreshers, he told me, just because I had to behave like a damned detective.

You won't get another bite to eat, doors won't open for you, refreshers will scald you, dogs will bite you.

You won’t get another bite to eat, doors won’t open for you, refreshers will scald you, dogs will bite you.

A major effort had to be made to jury-rig equivalents of shipboard refreshers and adapt them to hook in with Jockaira disposal arrangements.