der Drogendealer
drug dealer
A person who illegally deals in drugs, meaning sells narcotics.
Die Polizei konnte einen bekannten Drogendealer auf frischer Tat ertappen.
The police were able to catch a known drug dealer in the act.

drug dealer
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drug dealer
A person who illegally deals in drugs, meaning sells narcotics.
Die Polizei konnte einen bekannten Drogendealer auf frischer Tat ertappen.
The police were able to catch a known drug dealer in the act.

The word is a clear compound of 'Drogen' (drugs) and 'Dealer' (dealer). The second part, 'Dealer', is an English loanword for 'Händler' (dealer/trader) and in German is used almost only in this negative context.
Er wurde als Dealer für illegale Substanzen bekannt.
He became known as a dealer of illegal substances.
'Drogendealer' (drug dealer) is very often combined with verbs from the field of law enforcement. Typical phrases are 'einen Drogendealer festnehmen' (to arrest a drug dealer), 'verhaften' (to arrest), or 'überführen' (to convict/prove guilty).
Die Polizei hat gestern Abend zwei Drogendealer festgenommen.
The police arrested two drug dealers yesterday evening.
The colloquial verb 'dealen' (to deal drugs) is also derived from the word 'Dealer' (dealer). The shortened term 'Dealer' (dealer) is also common.
Er wurde beschuldigt, mit Drogen gedealt zu haben.
He was accused of having dealt drugs.
ticker / dealer / heart
'Ticker' and 'Drogendealer' can both mean a person who illegally sells drugs. In this meaning, however, 'Ticker' is colloquial or jargon and sounds much more informal. 'Drogendealer' is clearer and more neutrally understandable, for example in the news, with the police, or in serious conversations. The words can be confused because 'Ticker' can also have completely different meanings, such as a stream of news updates. So without the right context, 'Ticker' is not always immediately understood as referring to a person. If you want to speak clearly and objectively, 'Drogendealer' is more precise.

Die Polizei nahm einen Drogendealer in der Nähe der Schule fest.
The police arrested a drug dealer near the school.
Die Jugendlichen erzählten, dass der Ticker oft am Bahnhof steht.
The teenagers said that the dealer often stands at the train station.