In-joke
[de] Witz#Insiderwitz
[fr] Inside joke
[fy] Inside joke
[he] בדיחה פנימית
[hi] आपस का मज़ाक
[it] Inside joke
[ja] 内輪ネタ
[mk] Внатрешна шега
[nl] Inside joke
[nb] Intern spøk