目瞪口呆的“瞪”是什么意思？

解 释 瞪:睁.瞪着眼睛说不出话来。形容因吃惊或害怕而发愣的样子。
〝目瞪口呆〞是一个汉语成语。读音：mù dèng kǒu dāi，释义：目瞪，睁大眼睛直视；口呆，嘴里说不出话来。意为因吃惊、害怕、激动而发愣、发傻的样子。
西汉初年，韩信被封为齐王，丞相萧何担心韩信兵权太大，就找樊哙共商计策。樊哙自鸣得意，连夸自己是如何斗败项羽，吓得他目瞪口呆，从而保住主公。面对这淮阴一饿夫且手无缚鸡之力的韩信，只须叫一两个人就可以把他一刀两断
例句
邻居们都目瞪口呆，再不敢动。The neighbours all stood aghast, and dared not move.
我站在那儿目瞪口呆。I stood there dumbfounded.
他的秘书停止了记录，目瞪口呆地望着我。His secretary stopped taking notes to gape at me
教区牧师目瞪口呆地看着他，露出不相信的表情。The Vicar looked at him with open-mouthed incredulity.
他们几乎目瞪口呆地看着那两个人朝他们走过来。They watched almost open-mouthed as the two men came towards them
我们震惊、愕然、目瞪口呆，难以置信地摇着头。We were amazed, shocked, dumbfounded, shaking our heads in disbelief.
看到你照片中的模特戴着一个顶上立着一架玩具飞机的帽子，我真是目瞪口呆。I was really gobsmacked when I saw your picture of a model wearing a hat with a toy airplane on it.
她目瞪口呆地看着这场面，一时语塞。She was gaping at it, lost for words.
亨德森听到这个消息一时目瞪口呆。Henderson was momentarily jolted by the news.
约翰逊目瞪口呆地望着克拉维斯的豪宅。Johnson stared goggle-eyed at Kravis 'sumptuous quarters.
南希目瞪口呆。Nancy's mouth was agape.
满屋子的人震惊得目瞪口呆。The room became electric with amazement.

瞪： 睁大眼睛直视的样子。
1.目瞪口呆 [mu deng kǒu dāi ]解 释 目瞪：睁大眼睛直视；口呆：嘴里说不出话来.形容因吃惊或害怕而发愣的样子.出 处 元·无名氏《赚蒯通》第一折：“吓得项王目瞪口呆,动弹不得.” 
2.示例：鲁迅《序言》：“我是在二七年被血吓得目瞪口呆,离开广东的.” 殷、雷二将见众官激变,不复朝仪,被吓得目瞪口呆,不知所出.

睁大眼睛发呆。