inside joke

Noun

 * 1)  A joke that is understood or meant to be understood only by certain people who are aware of the details (an ingroup).

Translations

 * Catalan: acudit intern, broma interna
 * Chinese:
 * Mandarin: 內部笑話
 * Finnish: sisäpiirivitsi
 * French: blague entre nous,
 * German: ,
 * Icelandic: einkahúmor
 * Portuguese: piada interna
 * Spanish: broma local, broma privada, chiste interno, chiste privado
 * Swedish: internskämt
 * Turkish: inside joke