in-joke

US /ˈɪn.dʒoʊk/
UK /ˈɪn.dʒoʊk/
"in-joke" picture
1.

iç şaka, özel şaka

a joke that is understood only by a small group of people who are familiar with a particular subject or situation

:
Their conversation was full of in-jokes that I didn't understand.
Konuşmaları anlamadığım iç şakalarla doluydu.
You had to be there to get the in-joke.
İç şakayı anlamak için orada olman gerekiyordu.