- to fill out utilizing pencil
- to provisionally routine
- to write (a tentative appoinment) on a consultation schedule, so as to reserve time, but to allow the appointment to be easily canceled and replaced with another; -- additionally utilized figuratively, along with other method of recording appointments. The notion becoming that some thing written in pen can be more quickly altered than anything printed in ink. The expression is commonly used in the first stages of arranging a gathering of multiple individuals, prior to it being understood whether all attendees is going to be no-cost within recommended time.