HR: Još jedan bezvezno načrčkani grafit sa zagrebačkih zidova, mislit ćete si vi. I bit ćete u pravu. Ovaj čak nema ni smisla, što bi to uopće značilo, “Kaj ti stara radi Zadar?” ?
No, priča koja je nastala oko ovog grafita zaslužuje pažnju. Po internetu su se počela postavljati pitanja o značenju ovog grafita. Napisani su razni članci, otprilike se saznalo i vrijeme kad je grafit napisan (između 5. i 9. mjeseca 2009. godine), a pokrenuta je i Facebook grupa za komentiranje, koja već ima nevjerojatnih i fascinantnih 15000 lajkova!!!!
Top 5 vjerojatnih objašnjenja su:
1. Neki student iz obližnjeg doma na Cvjetnom je pod utjecajem alkohola/trave/nečeg još žešćeg napisao grafit za kojeg ni on sam ne zna što znači. 
2. U obližnjem Vjesniku, razni urednici rade razna izdanja za pojedine hrvatske gradove/regije, pa tako imamo slavonsko, istarsko itd. izdanje, a Zadarsko je jedno od njih. Dakle nečija stara je radila Zadarsko izdanje Vjesnika/Večernjeg lista.
3. Nečija stara je takva radodajka, da je preko nje prešao cijeli Zadar. 
4. U ZG žargonu, Cibona (košarkaški klub iz Zagreba) je “stara”, a Zadar je vječiti rival iz istoimenog grada, tako da bi to značilo da Cibona pobjeđuje Zadar.
5. Greška u interpunkciji, trebalo bi biti “Kaj ti stara radi za dar?”, što je jednako nerazumljivo…
Dakle, pridružite se grupi od 15000 (!!) ljudi na FBu, i ponudite svoju teoriju o spomenutom grafitu. BTW, točnog rješenja nema, jer je autor nepoznat.
Zadar! 
(a bit difficult to translate in English, but I’ll try)
EN: Another stupid scribbling on Zagreb’s wall, you might think, and you would be right. This sentence in Croatian has no sense, literally it means “Yo mama is working/doing Zadar?” (Zadar is a croatian city, on the coast). It looks like a typical “yo mama” joke, so frequent in English language.
The buzz which followed this graffiti needs attention. There were questions on the internet about meaning of this graffiti. Many articles (Croatian only) were written, exact time when it was written has been pinpointed (between May and September of 2009.), and there is a Facebook group for comments, which already has fascinating 15000 likes!!!!
Top 5 probable explanations are:
1. A student from a close-by student dorm, under the influence of alcohol/weed/something heavier wrote this graffiti, and even he doesn’t know its meaning.
2. There is a headquarters of a Croatian daily newspaper just next door, and there are separate editions for various regions of Croatia. So, somebody’s mama is doing the Zadar edition of this newspaper.
3. Somebody’s mama is a whore, so it is implied that she did the whole Zadar area (or better, the whole Zadar area did her).
4. In Zagreb’s slang, “stara” is a nickname for Cibona (Zagreb’s basketball club), and Zadar is their all-time rival (obviously, from Zadar). So Cibona is winning over Zadar.
5. Missing space in the last word, but the result is still incomprehensible.
Btw, there is no correct solution, because the author is unknown.