A surname from German.

(by extension) To utter a murmuring sound; to speak with a low, humming voice. / Of a group of people, to talk about some interesting topic excitedly.

(idiomatic) To abuse an illegal drug or drugs, especially as a result of chemical addiction.

(historical) An old printing machine that involves transfer of an original, prepared with special inks, to a pan of gelatin or a gelatin pad pulled tight on a metal frame.