ink in
phrasal verbPart ofink
ink in — phrasal verb
1. To write something using ink rather than pencil; or to confirm a plan or arrange
1.phrasal verb
Definition
To write something using ink rather than pencil; or to confirm a plan or arrangement as definite and final.
Example
Once the venue was confirmed, Liam inked the date in on his calendar.
The manager said the meeting was only pencilled in, so Diya waited until it was inked in before booking flights.