Its also when you hold up only your
index and
middle finger up, while placing your
thumb over your remaing two fingers. (See also:
Peace Sign)
When you were a
young idiot I'm sure you've held rabbit ears over the back of someones head when a
picture was being taken. Its a great way to
spoil good pictures =p
Some people also use it when speaking in
public to show that somthing is being
quoted.