(n.) the second largest city in the Earth Kingdom (second only to Ba Sing Se), one of the last great strongholds of the Earth Kingdom during the Hundred Year War.
(
v.) to
steal, usually in a manner that is very unexpected or surprisingly (often without fighting); to conquer, usually in a comedic manner. Note: the act of omashu-ing is often accidental and unintended by the do-er. This is often accompanied by lots of confusion, especially by the do-er, and potential laughter (most commonly in recollections of the fact and from
outside viewers).
(Most often
done by
Zuko in MuffinLance's stories on ArchiveOfOurOwn.)
Zuko omashu-ed Omashu by challenging
Aang to an Agni Kai-- upon his
victory, the Fire Nation gained control of Omashu.