バックタチ : bakku tachi · bakkutachi | define meaning
Region: Honshu (Standard)
bakku tachi · bakkutachi
- (Sexual role) A person who assumes the penetrative role during anal sex. A top.
Ultimately derived from the loan バック bakku "back", which can mean "anal sex" in Japanese gay subculture (compare the English word "bareback"); and the Japanese word タチ tachi "dominant partner in a homosexual relationship", itself from たち【立ち】 tachi "standing".
This term distinguishes itself from からみタチ【絡みタチ】 karami tachi, which refers the person who assumes the dominant role in a homosexual relationship.