Full tapes are being revealed tomorrow and it's getting even more serious.
Tapes include Sikorski (Polish Minister of Foreign Affairs) having a talk with Rostowski (former Minister of Finance).
Some of the things that were said (translation is mine, sorry for any mistakes):

Sikorski: «You know that Polish-American alliance is worth nothing. It's even harmful, because it creates a fake sense of safety. Total bullshit, We'll get conflicted with Germany and Russia and we'll think everything is ok, because we sucked American's dick. Losers, complete losers»

(ты знаешь что польско-американские отношения ничего не стоят. более того, они вредны, т.к. создают обманчивую видимость безопасности. нас ввяжут в конфронтацию с германией и россией и мы будем думать что все отлично т.к. мы отсосали американский хуй. Лузеры, полные лузеры)

and later:
«The problem in Poland is we have a very shallow pride and low self-esteem»

Rostowski: «Something like Sentimentality»

S:«Something like Murzyńskość»

It's hard to translate «Murzyńskość». Murzyn is a Polish word for a black person. It's not as hard as the n-word, but it's definitely harder than the" black man" itself. So «Murzyńskość» might mean something like «Black man's mentality».
It's just tip of the iceberg there's a lot more about Polish internal politics and there are a lot more of these tapes to come. Discrediting a guy that played a really big role in Ukrainian- Russian talks, a guy that had a chance to become EU foreign policy chief?