Then his jaw slackened and he ejected, "Good heavens!
Scrainwood's jaw slackened for a moment, but his eyes narrowed quickly enough.
Hobbs's jaw slackened and he slumped into one of the kitchen chairs.
Christian's jaw slackened in shock and he thought his face must have flushed- it felt as if it were on fire.
The viper hung on for a few seconds, then the jaws slackened.
Sometimes it may affect only one part of the body so that, for instance, the jaw slackens and the head drops.
Cooper felt his jaw slacken as he began to comprehend the enormity of what he was hearing.
There was a look of surprise, then defeat, in his eyes and his jaw slackened a bit but he said nothing.
His jaw was slackening, and his tongue felt swollen and dry.
His jaw slackened a trifle and his hand went up to his mouth to cover it.