Bitchy resting face. Sempre quis encontrar uma boa tradução para essa expressão, definida pelo Urban Dictionary como:
A blank look that makes a woman look angry all the time, even if they aren't.
When a woman's default, or neutral, facial expression is rather bitchy and mean looking in nature. She can be happy, nice and even in a great mood, but she'll still have that look. They can't help it.