Trap-cumshot is a porn video tag that combines two different themes. "Trap" typically refers to transgender or gender non-conforming individuals, while "cumshot" refers to the act of ejaculation on or near someone's body, usually focusing on their genitals or breasts. So, this tag suggests a porn video featuring a transgender/gender non-conforming person receiving a cumshot in the scene. This content is meant for adult audiences who are experienced with porn videos and interested in this specific category.