To have a secret plan or idea.
Avoir un plan secret ou une idée. (Avoir un plan secret ou une idée.)
"Don’t worry, he has something up his sleeve for the project."
"Ne t'inquiète pas, il a quelque chose dans sa manche pour le projet." (Ne t'inquiète pas, il **a quelque chose dans sa manche** pour le projet.)
to be honest and kind in feelings and actions
To continue supporting a cause or idea passed from the past.
a family member who is considered a disgrace
to suddenly start laughing loudly
to return to the original state after a series of changes
a person or group that is trusted and reliable