Verb
give something a whirl (third-person singular simple present gives something a whirl, present participle giving something a whirl, simple past gave something a whirl, past participle given something a whirl)
(idiomatic) To try, test or attempt.
If you've never tried a recumbent bicycle before, you're welcome to give it a whirl.
I don't know how to begin, but I'll give it a whirl, anyway.