Why did you buy a T-shirt that you didn't understand?
Are you sure about the spelling, and could it be Polish? I don't speak Slovak.or Polish, but my detective work reveals the following:
'Anioł' means 'Angel' in Polish and 'anioły' means 'Angels'. 'I' means 'and' in Polish and Slovak (there are two words for 'and' in Slovak, 'a' and 'i'.
'Maja' is a popular girl's name in the Slavic countries. 'Doey' might be her surname. So my best guess is that this young lady, Maja Doey, is an angel...