This is the 17875th most frequent Polish word.
łukasika
The term "łukasika" does not appear to have a definition in Polish; it may be a proper noun, surname, or misspelling.
Here, 'Łukasika' is used in the accusative case, representing 'Łukasik' as the object of the verb.
Łukasika widziałem wczoraj w parku.
I saw Łukasika in the park yesterday.
In this sentence, 'Łukasika' is in the genitive case, indicating possession or association with 'Łukasik'.
Nie rozumiem decyzji Łukasika.
I don't understand Łukasika's decision.
Here 'Łukasika' is also in the genitive case, showing possession or association with 'Łukasik'.