when someone who is usually full of words and useless sayings is suddenly put on the spot, and can't find shit to say. A lack of words.
When Pres. Bush was asked why we are in Iraq, his jaw just dropped. He must suffer from oral constipation.
When i asked my best friend why he was fucking my wife he stood theresuprised gulping for air like a fish, he suffered from oral constipation as well.