てちょうだい makes a familiar, direct request for the listener to do something. It often feels like “do this for me, please” and is used with family, partners, children, and other close people.
What the request implies
The listener is expected to perform the action, while the speaker presents it as something wanted for the speaker’s sake. This personal “for me” feeling is often stronger than in a bare te-form request.
Said by a caregiver to a child, this can sound firm but caring rather than impolite.
Compared with a bare te-form request
A bare te-form can also make a casual request, but it does not explicitly add the same “do it for me” framing. Adding ちょうだい can make the request feel more personally directed and, depending on tone, more insistent.
