What is the meaning of Doop?

Alternative form of dop (cup in which diamond is cut)

baptism

christening

hazing

inflection of dopen:

  1. first-person singular present indicative
  2. (in case of inversion) second-person singular present indicative
  3. imperative

first-person singular present indicative

(in case of inversion) second-person singular present indicative

imperative

Source: wiktionary.org