Board Thread:Questions and Answers/@comment-25179962-20140829164556/@comment-24145588-20141023200448

DTrain.7 wrote: What does "FACE PALM" mean It's the gesture of covering one's face with one's hand, with the implied meaning of, "I can't believe you just said that."

Canonical example shown here.

But no facepalm was warranted in this case; your question was valid. (I just never got around to answering it before Bunsen did.) I play around a lot with GIMP, and that's how I made that image. It was easy, because all of the transparent PNG images are available hee on the site.