be tight-lipped

(redirected from are tight-lipped)

be tight-lipped

1. Literally, to have one's lips pressed together, as in anger. I knew my girlfriend was angry as soon as I saw that she was tight-lipped and glaring at me.
2. To be unwilling to talk openly or share details about someone or something. I still don't know anything about Maria's new boyfriend because she's so tight-lipped about him. Don't worry, we can trust my sister to be tight-lipped—she won't tell anyone about our engagement until we do.
References in periodicals archive ?
The deputy commissioner, the police are tight-lipped, heaping more suspicion and mystery around snapping the internet, he added.
At the moment, they are tight-lipped, presumably scared,' he said.
Big screen spin-off Haunted High School Musical hits cinemas next year but producers are tight-lipped about the plot.
In Europe, the Trixell consortium, who use DpiX displays in medical applications, are tight-lipped about the extent of their interests.