why do white girls in the states say "UGH!" so much

"You're sold out of diet coke? UGH!"

This isn't a troll thread. I am actually interested to see why girls of other ethnicities or geographic dispositions never use this word.

Americans are known to use um, "you know", and like to describe things. Many of which is due to the fact it is a very low -context culture and people here are encouraged to be vocal. A lot of it is due to the fact that people here think and talk at the same time, instead of thinking before talking. However, with "you know", like, and um, even people from other ethnicities and countries adopt this practise of using it in speech (me included) but "UGH" is almost exclusively reserved for Caucasian North American females.

Any linguists in here interested in shining some light on this phenomenon? And no this isn't a troll thread before the white supremacists or feminists get defensive, becuase I don't see any girls from Australia or Russia talking like this.

No idea, and never heard it, probably because I am not surrounded by American caucasian women in the first place. The word UGH though reminds me of what we consider to be the hailing words of the first nation people in North America.

I had never heard it before, or maybe I pay less attention to the pronunciation there

No idea. I ditched white girls a while ago...

never heard it before.

I have never heard this before either. But yeah well thats the society they grown up in.