A Gunman Called Papaco

Um Pistoleiro Chamado Papaco, also released as Os Amores de um Pistoleiro, is a 1986 Brazilian Western pornochanchada film directed by Mário Vaz Filho and starring Fernando Benini as the gunslinger Papaco. The film was produced in Boca do Lixo, an area in the Central Zone of São Paulo that was a stronghold of Brazilian underground cinema. The film became an internet meme in Brazil.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.