Chabangbang
The act that is the culmination of sweat, blood, and in rare cases, tears, over the painstaking admiration of a girl over a prolonged period of time that eventually leads to her mutual admiration, dating, hugging, kissing, loving, etc until the big moment. INTERcourse.
Guy #1: "Man, the chabangbang was so worth the effort put into the relationship."
Guy #2: "I know, right?"
Guy #2: "I know, right?"