Вот слово "гоккон", то есть групповое свидание, я знала, а コンパ (компа, сокр. от компания) - нет.
The term gōkon comes from the Japanese words konpa (a party for members of a single group, class, or club) and gōdō ("together", "combination"). Generally speaking, gōkon are not primarily intended to result in one-night stands (something more associated with nanpa), but rather for making friends and possibly forming long-term relationships.
en.wikipedia.org/wiki/Group_dating