The symbols over the mouth represent cursing. The serious-looking smiley is really upset and keeps using four-letter words. Represents a sudden outburst of fury or frustration.
The face with symbols on mouth emoji was introduced in 2017 and released as part of the Unicode 11.0 standard. This emoji can be found under the smileys and emotions
category. Because the face with symbols on mouth emoji has been around for quite some time, it should display correctly in the majority of operating systems.