Duck face

The lips are pressed together as in a pout and the cheeks are typically also sucked in, often looking as if the person is tasting something sour.

[3] Fashion models frequently use exaggerated pouts,[1] and self-portraits with a pouty face go back to Rembrandt.

[4] In the 1994 film Four Weddings and a Funeral, one of the lead characters, Henrietta, played by Anna Chancellor, is nicknamed Duckface for her pouty expressions.

[1] Ben Stiller mocked models' pouty expressions in 1996 comedy sketches and the 2001 feature film Zoolander.

[5] As social networks became popular, young women frequently made exaggeratedly pouty expressions.