An exclamation of impatience is an expression of frustration or annoyance. Common examples include 'Yah!', 'Pshaw!', 'Today!' and 'TUSH!'. 'Yah' is a short interjection used to express surprise, disbelief, or frustration. 'Pshaw' is an expression of disbelief or dismissal. 'Today' is an expression of urgency or impatience. Finally, 'TUSH' is an expression of disbelief or dismissal, similar to 'Pshaw'.