"Homemade Twinks (Gay)" is a porn video tag that indicates the content features amateur, user-generated videos involving young, attractive males who are typically in their teens or early 20s. These individuals are referred to as "twinks." The term "gay" signifies that the sexual activity depicted in the videos involves same-sex encounters between these young men.
The phrase "homemade" suggests that the content is not professionally produced by a studio or company, but rather created and filmed by the individuals themselves or their friends. This often results in more intimate and raw footage as opposed to polished, scripted scenes from professional productions.