ごうこんコン
gō kon

Noun
Suru Verb

1. joint party (e.g. by students from several colleges); combined party; mixer; two or more groups, esp. female and male students, combining for a party

Abbreviation
Related to 合同コンパ
おいおい、一 いっ まい看板 かんばんのお まえ れないんじゃ、今日 きょう ごうこんコン がらないよ。
oioi ichimai kambanno omaega korenai nja kyōno gōkon moriagaranaiyo.
We're counting on you to be the life of the party. It'll bomb if you don't come.