8

叫んどんねん is short for 叫んどるねん, which is short for 叫んでおるねん, which is 叫んでいるんだ(よ) said in Osaka-ben. There is no negation. おる is used instead of いる in many western dialects to denote progressive aspect. See: おる in honorific contexts and Existence verbs in the Kansai Dialect ておる/でおる very commonly contracts to とる/どる. See this chart. /r/ + vowel before /n/ can ...


3

The talker is saying "トイレの個室で何叫んでるんだよ" (Roughly means What the hell are you yelling about in the bathroom stall?) in Kansai dialect, not slur. It can be divided like: トイレ | の | 個室 | で | 何 | 叫んどん | ねん トイレ | の | 個室 | で | 何 | 叫んでるん | だよ


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