Rearrange (one's) face phrase informal
To alter the look on your face so that others don't see or know your negative emotion or reaction.
I went out of the class to rearrange my face when I heard that my crush loved my best friend.
When I saw them from afar, I turned away, rearranged my face, and continued approaching them.
To severely damage one's face by hitting it violently.
Self-hatred apparently drove her to rearrange her own face.
After rearranging his face, the killer shot him in the head.
The verb "rearrange" must be conjugated according to its tense.
The origin of this phrase is not clear.
Used to tell someone not to stress about something
A: I'll help you prepare the dinner.
B: I am really into cooking myself, so don't worry your pretty little head about it.