facepalming
face-palm-ing
noun
The act of covering one's face with a hand, expressing exasperation, embarrassment, or disbelief.
"There was a collective facepalming at his gaffe."
verb
The present participle of 'facepalm', meaning to cover one's face with a hand.
"He was facepalming at the sheer stupidity."
Thesaurus
Synonyms: facepalm