be anyone's guess

US /bi ˈen.i.wʌnz ɡes/
UK /bi ˈen.i.wʌnz ɡes/
"be anyone's guess" picture
1.

zgaduj zgadula, nie wiadomo

to be impossible for anyone to know or predict

:
When the new product will be released is anyone's guess.
Kiedy nowy produkt zostanie wydany, to zgaduj zgadula.
What he'll do next is anyone's guess.
Co zrobi dalej, to zgaduj zgadula.