"(to be) tongue-tied"
to be unable to speak due to shyness, embarrassment or astonishment
Related words and phrases:
Two colleagues are talking ...
Colleague 1: Well, did you ask the boss for a raise?
Colleague 2: I tried but I couldn't.
Colleague 1: What do you mean, you couldn't?
Colleague 2: The boss makes me so nervous that I become tongue-tied and can't express what I really want to say.
Colleague 1: Maybe you need some practice.
Two friends are talking ...
Friend 1: Did you ask her out?
Friend 2: I really tried.
Friend 1: But?
Friend 2: I like this girl so much that whenever I am near her, I get terribly tongue-tied and am just able to stammer out incoherent noises.
Friend 1: That's too bad. You two would make a nice couple.
Being tongue-tied with amazement, she was unable to accept his proposal.
1) ... attracted to Rosalind as she to him at the wrestling match, Orlando is too tongue-tied to reply to Rosalind's gracious and encouraging hints of love interest.
2) Not that I'm anti-social, but I really sometimes get tongue-tied with strangers, making small talk.
3) ... the latter, becoming tongue-tied and awkward, appeared completely foolish and dim-witted.
4) My doubts came flooding in and I became tongue-tied with my explanation of what I can offer my clients.
5) I loved hearing you read from the book, and was too tongue-tied to say so properly.
6) When you first start explaining, you may feel rushed, tongue-tied and not sure where to start. Just start talking and it will flow out ...
7) When I finally met him, I was petrified and tongue-tied.
8) ... the courage to talk to the girl of your dreams, but you feel completely tongue-tied and awkward once the conversation gets going.
9) For anyone who's ever felt tongue-tied or immobilized at a party, here's a survival guide.
10) ... worrying about what the other person is thinking about you, causing yourself to feel tongue-tied.
11) He is extremely shy and tongue-tied when it comes to speaking in public.
12) He is an absolutely awful public speaker for such a smart man. Absolutely tongue-tied.
13) She anticipated the question I was too tongue-tied to ask.
14) Now and then you don't say it very elegantly. And you get tongue-tied or you mix it up and you say something you don't exactly mean.
15) There's nothing more embarrassing than seeing an activist grow tongue-tied when asked to elaborate on an issue.
16) Someone will cry, the bride and/or groom will get tongue-tied while repeating their vows, ...
17) Explain your faux pas with grace. Rather than getting tongue-tied with apologies, over-explaining, or trying to evade the situation, ...
18) They're just a bit tongue-tied at first and need some time to warm up to the people they're with ...
19) Gerald rattled off feeling his cheeks flush for the third time. Tongue-tied, he stopped and closed his eyes and tried to focus.
20) ... if you ask me to communicate my thoughts through spoken word I feel like a tongue-tied buffoon.