This is the 6311th most frequent Polish word.
bosaka
"Bosaka" in Polish means "barefoot."
In this example, 'na bosaka' indicates the relaxing and informal nature of being barefoot.
Spacer po plaży na bosaka jest bardzo relaksujący.
A walk on the beach barefoot is very relaxing.
In this sentence, 'na bosaka' is used to describe someone being barefoot, emphasizing the manner in which the action is performed.
Dziecko biegało na bosaka po trawie.
The child ran barefoot on the grass.
Here, 'na bosaka' refers to walking without shoes, pointing out a natural or casual state.