Biography
A few tidbits about the band's name:
43 is number of the bus that frequents Kotež, the part of the city of Belgrade where the band members either live or like to hang out.
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The suffix "zla" means evils in Serbian.
When you read it in Serbian it sounds like chetres-tree-zlah. It has a hidden meaning since the ree-zlah part (ризла/rizla in Serbian) means smoking paper, after well-known RizLa+ cigarette paper manufacturer and vendor.
Biography text from Last.fm, available under CC BY-SA.