Teessüf eder means "regrets" or "expresses regret." It's a more formal and less common way to say someone is sorry or disapproves of something, making it stand out from everyday vocabulary.
In the song, the line "Hako egolu değil, sana teessüf eder" translates to "Hako is not egoistic, he expresses regret to you." This suggests that the artist, Hako, is not arrogant but rather feels sorry or disapproves of the listener's actions or perceptions, adding a layer of sophisticated emotion to the lyrics.
BLOK3's "Sakin Ol Champ" is a confident and slightly defiant track where the artist, Hako, addresses his critics and celebrates his success. He knows he's a hot topic, saying "En çok sevilmeyen adam en çok konuşulan olur / Yani her ortamınızda reklamımı yap'çaksınız" (The most disliked man becomes the most talked about / So you'll advertise me in every environment). He finds it amusing that people think they know him better than he knows himself, asking "Merak ediyorum, neye yararsınız?" (I wonder, what good are you?).
He's not just talking, he's living it up. Hako is all about the good life, with "Yeni champagne, ha, severim, yep" (New champagne, ha, I love it, yep) and a "full flex" attitude. He even throws in a bit of a warning with "Tabancam dolu, hadi, dene, click-clack" (My gun is loaded, come on, try it, click-clack), showing he's not to be messed with. Despite the bravado, he admits to moments of sadness, but money helps balance it out: "Para gelince bendeki dengeleniyo' keder" (When money comes, the sorrow in me is balanced). It's a fun, boastful anthem about rising above the haters and enjoying the fruits of your labor.