to try something that you are not sure you are going to like or be able to do:
Why don't you give golf a whirl?
a lot of activity of a particular kind:
the social whirl of New York publishing
to feel very excited or confused about something:
His mind was in a whirl and he was worried.
4 [countable usually singular]
a spinning movement or the shape of something that is spinning
A car rumbled over the bumpy dirt road, leaving behind a whirl of white dust.