The act of cockblocking yourself through talking to much, saying the
wrong things, acting really creepy, etc., effectively negating any sexual attraction anyone might have had towards you. (Akin to shoot yourself in the foot) The likelihood of shooting yourself in the
dick is in direct correlation with the amount of
alcohol you consume.
Person A: Wow, I thought
Shreyas was kind of cute, but he keeps texting me about how I'm basically the personification of all his fetishes.
Person B: Holy
crap, that's so creepy. Way to shoot yourself in the
dick.