A misspelling of Moon on purpose. It is used very often in livestreams chat, even in unrelated stuff. Could be used as a funny spam message to make the livestreammods mad.
Synonyms for Moom
On this page, you will find 30 slang terms related to Moom. Some of the top words include: intarweb, star craft, smrat, mispeling, your, and 25 more.