fuck around and find out

Verb

fuck around and find out (third-person singular simple present fucks around and finds out, present participle fucking around and finding out, simple past and past participle fucked around and found out)

1. (intransitive, slang, vulgar) To experience the negative consequences of engaging in a risky course of action.
   • “A'ight, you keep on waiting. She gon' fuck around and find out on her own”.2014, Keisha Ervin, Reckless 2: Nobody's Girl, page 22
   • Debuting on Soulelection's new Beats 1 program, the new track titled "B's & H's" was produced by Fisticuffs and is a sultry warning to any "bitches and hoes" who don't even know what they're in for with a guy who's "gonna fuck around and find out".2016, Corbin Reiff, “Jhené Aiko Calls Out Unfaithful Men on 'B's & H's'”, in Complex

   Synonyms:

   FAFO

2. To engage in trial and error or experimentation, especially when it involves serious risk.
   • What makes fucking around and finding out into science is that you write down your findings.