high on one's own supply

形容词 adj.

英文释义

形容词 adj.
  1. (of a drug dealer) Using the drugs which one sells, especially to excess. literally,not-comparable
  2. Assigning too much credibility to exaggerated favorable descriptions of one's character, achievements, or prospects; intoxicated by one's own braggadocio; enamored with one's own overvalued public image. figuratively,not-comparable
    — The relentless pursuit of realising his imagination on the big screen has come at a personal cost. […] The director admits he used to play up to the "image of what a film-maker was supposed to be. […] [D]on't get seduced by your own stuff. Don't get high on your own supply."

词源

From a scene in the film Scarface (1983), in which drug dealer Tony Montana (Al Pacino) is mocked for excessively consuming cocaine from his own inventory.
:
1983, Oliver Stone, Scarface, spoken by Elvira Hancock (Michelle Pfeiffer):
Lesson number two: Don't get high on your own supply.
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