Дилер

* Гера (tr. Gera) - being a short form for such names as Георгий (tr. Georgiy, eq. George), Герман (tr. German, eq. Hermann or Jermaine) or Герасим (Gerasim, orig. greek Gerasimos), talkative slang for heroin (героин, tr. geroin), not a popular one yet rather obvious and self-eplanatory.

** Shouting is more or less direct translation to "кричишь", however the street slang usage of it roots to the private description of a person who vigorously states his point, often with a negligible connotation as per intent or as per fashion of given speaker's "амплуа" (fr. emploi, classicism related term for character's role setting). For example: "the dude shouts he never conned anyone"; while in reallity the person could've politely explained himself in a calm manner proving it even beyond the doubt, while the latter fact is being examined or put under the question in the third-party dialog, for example, due to lack of all the details and for precisive avoidance of rumors/siding. The term's meaning is applicable to any form of communication (incl. phone calls and emotion al connotations) which used to take place, leaving it as not relevant or for further logical decomposition.

*** Translation shenanigans: твой продавец, мой покупатель ; possessive type of relationships wordplay(?): "my buyer" a casual speech talkative form for someone who bought something from you recently, but the translation is meant to be straightforward as per the context .

**** can be viewed as a form of a question, as if followed by additional elaborated narrower preliminary conditions or series of questions for clarification purposes; artistically and here - this is all a statement.