take a stab at
Verb
Meaning
(idiomatic) To attempt or try.
Would you like to take a stab at explaining the theory?
(idiomatic) To guess.
I'll take a stab at the answer, but I don't really know for sure.
Used other than figuratively or idiomatically: see take, stab.
Source: en.wiktionary.orgSynonyms
Examples
It was very punk rock for me to take a stab at working with Justin Bieber. I don't know how people portray that, or 'Climax,' for that matter. But for me, it was the most adventurous thing I could have done at that exact moment.
I decided to take a stab at acting. I entered the American Academy of Dramatic Art, where one teacher told me I'd never make it - I was too tall.