slack-jawed

Adjective

 * 1) With the mouth in an open position and the jaw hanging loosely, especially as indicating bewilderment or astonishment.
 * 2)  Unsophisticated or unthinking; dimwitted in appearance.
 * 3)  Overly talkative; indiscreet.
 * 1)  Unsophisticated or unthinking; dimwitted in appearance.
 * 2)  Overly talkative; indiscreet.
 * 1)  Overly talkative; indiscreet.
 * 1)  Overly talkative; indiscreet.
 * 1)  Overly talkative; indiscreet.
 * 1)  Overly talkative; indiscreet.