Similarities include, 'sucks', 'stupid', 'dumb' 'boring' etc ...
Can be used as a noun or an adjective.
'Moen' is popularly used in the 21st century as an expression to strongly describe how dumb or stupid someone is. This saying came from the Manawatu-Wanganui region, is now famous! and known all over the motu lol CHEEA !!
We use this word on a daily basis and in everyday conversation. Is still going strong after a few good 5-8 years.
"bro don't do that"
"this is MOEN"
"i know aye"
"yeah .. like you"
"why can't I borrow your car for" ?
"because you're MOEN that's why" !