| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| the offspring of a zebra and a donkey. |
go ballistic
Become extremely upset or angry, as in Dad will go ballistic when he sees you dented the new car. This expression, a variation on go berserk, originally alluded to a guided missile going out of control. [Slang; mid-1980s]