jambuster

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium. Particularly: “Is this a reference to dambuster?”)

jambuster (plural jambusters)

1. (Manitoba, Northwestern Ontario) A doughnut filled with jam.

   Synonyms: bismarck, Burlington bun, jam doughnut, jelly doughnut

• Berliner

• “jambuster” in the Canadian Oxford Dictionary, Second Edition, Oxford University Press, 2004.