When a man and
woman are having sex 'doggie-style', with the man wearting a condom, and the man says,
"Oh look, a disappearing
panda."
And when the
woman turns to look at the man, he quickly pulls out, removes the condom and snaps her in the eye with it.
As in the previous example, which did not state the sex being engaged in was '
doggie-style',
"I can't believe how dumb she is. I actually pulled a Disappearing
Panda on her last
night."