keep a straight face
/ˌkip ə ˌstɹeɪt ˈfeɪs/
To avoid laughing or smiling when something is funny.
“It was hard to keep a straight face when the professor's slide showed a dancing cat.”Add to my deck
/ˌkip ə ˌstɹeɪt ˈfeɪs/
To avoid laughing or smiling when something is funny.
“It was hard to keep a straight face when the professor's slide showed a dancing cat.”Add to my deck