seliph
free palestine
I'm pretty sure OP is referring to people who actually use other languages as an accessory to sound cute to the point of fetishizing other languages for ~aesthetics~. For example, non-Japanese people calling themselves and others senpai or (name)-chan/san/sama/etc. and shouting "kawaii" and "sugoi" at things, or non-Korean people calling people oppa, noona, unnie, etc. That's gross and makes you look like an ass.