"Tiu tiu" could be a phonetic representation of a lyric or a lesser-known track.
You may be looking for a blog post about the life and legacy of the late composer who defined a generation of Romanian "muzică ușoară". Marcel Dragomir-tiu tiu
You might be thinking of Marius Dragomir, known for the "Party in Transylvania" style and ethno-pop music, which features more rhythmic, onomatopoeic hooks. "Tiu tiu" could be a phonetic representation of