"That cannot be true!" is what you think when facing the stupidity of other people. Can also be used if you are embarrassed for someone else.
The person facepalming emoji was introduced in 2016 and released as part of the Unicode 11.0 standard. This emoji can be found under the people and body
category. Because the person facepalming emoji has been around for quite some time, it should display correctly in the majority of operating systems.