verb/soˌnaɾ a ˈt͡ʃino/
to be Greek to someone, to be incomprehensible
“Si te digo "wea weón culiao chucha aweonao" puede que te suene a chino.” — If I say "wea weón culiao chucha aweonao" it might sound like gibberish to you.
Related: me suena a chino
Literally, “to sound like Chinese”.