Meaning of “fit sb/sth in” - Learner’s Dictionary

fit sb/sth in

phrasal verb with fit us uk /fɪt/ verb present participle fitting, past tense and past participle fitted

to find the time to see someone or do something:

The dentist can fit you in on Tuesday morning.

(Definition of “fit sb/sth in” from the Cambridge Learner’s Dictionary © Cambridge University Press)