faceplam - When you try to facepalm but it's so weak it's like a slap w

When you try to facepalm but it's so weak it's like a slap with a wet noodle, but it's still for something stupid.

'He said the sky is green. I faceplammed with my back hand like it was nothing.'

'She told me the same joke again. I faceplammed with my back hand like it was a breeze.'

'He just said 'Hello' for the 10th time. I faceplammed with my back hand like it was a hobby.'