Mindshake
The vigorous shaking back and forth of ones head after a particularly unsavory thought, as if to shake the image away.
"Dude, I totally walked in on my mom and dad Doing It!"
"At least it wasn't your Grandma and Grandpa!"
vigorously shaking head back and forth "Ewwww!!!!" *mindshake*
"At least it wasn't your Grandma and Grandpa!"
vigorously shaking head back and forth "Ewwww!!!!" *mindshake*