come to think of it
US /kʌm tə θɪŋk əv ɪt/
UK /kʌm tə θɪŋk əv ɪt/

1.
a pensarci bene, ora che ci penso
used to introduce a new thought or a realization that occurs to one at the moment of speaking
:
•
Come to think of it, I haven't seen John all day.
A pensarci bene, non ho visto John per tutto il giorno.
•
We should invite Sarah too. Come to think of it, she loves parties.
Dovremmo invitare anche Sarah. A pensarci bene, lei adora le feste.