When their back was turned...
Everyone's seen it or done it, or both.
When a person (usually of a higher authority or higher something - morals etc) has finished speaking (usually in a demeaning manner). Just as they turn around, you (or someone else) mimes out an action of something (usually vulgar). It all goes well until they turn back mid-mime.

For example, year 8 history, my friend (who fancied our young teacher - lady) had just been reprimanded. As she turned around he mimed - and I can only describe it as - "doing her doggy style and slapping her well toned ass" (his words).
There was an awkward moment, she froze, he froze, everyone observed this standoff...
"What are you doing?" "Just stretching miss."
No-one bought it, but it wasn't persued. I asked her at my prom why she didn't take it any further.
"I just didn't want to explain to his parents what he was doing ove the phone"
Peculiar...
What turn-around moments have you witnessed and what was the outcome?
(Good Looking Deity Grew a magnificent beard on, Tue 17 Oct 2006, 21:48, Reply)