Well, he doesn't say if Tadek was a mafia guy, or if he was reach legally, but seems it was legally. They don't say why he bankrupted, they just say that he bankrupted.
I did something like translation to English, here you got it:
Tadek, you bitch!!!I used to have a friend, he's name was Tadeusz (Tadek). He had a lot of money and he drove jaguar, he spent a lot of time in nightclubs and always had best girls, i say to him, i've ran out of many, he laughed and said fuck away, i won't spend time with poormen
ref.<chuj, chuj Ci w dupe>
One day Tadziu (Tadek) bankrupted, rang to the door, called me through the window "my friend I always liked you" "Fuck off, Tadek" i shorly replied
<ref>
<guitar solo> - singer says something like "come on, more power"
Well, it's rather a random and underground band, i've never heard about them, and never heard any of their songs. Maybe their known in their city, however they don't appear in polish mass media