It can be used as nearly and part of speech, such as a noun, verb, adjective, adverb, past participle, subjunctive verb, etc.
It is often used as a substitute for another word, whether it's to avoid explicit terms, or in lieu of a forgotten word.
also spelled jawn.
"word; truly, I've never been so jauwn impressed with someone's performance!" (adverb)
"trudat. but she jauwned it up! it was so close to perfect." (past participle)
"i agree. i think it'd've been better if she'd simply fena jauwn. she'd have gotten more skrillas." (past subjunctive)