full-on
adjective UK uk/ˌfʊlˈɒn/ us/ˌfʊlˈɑːn/
(VERY GREAT)
非常棒的；极度的
very great or to the greatest degree
The hotel specializes in full-on luxury. 那家宾馆极度奢华。
(ENTHUSIASTIC)
[ after verb ]过于严肃的；狂热的
very serious and enthusiastic, often in a way that is annoying to other people