face-turning 

n. Muffling out an interlocutor by slowly - yet unexpectedly - turning away their cranium with the palm of your hand. Can be construed as either playful or patently insolent by the receiving end.

Randy: You're boring me.
::turns her face::
Dina: What just happened?
Randy: It's called face-turning, toots. Deal with it.

face-turning by brown eyed girl March 24, 2006