A tampon that has been left in the vagina for too long. If a woman does not take out her tampon soon enough, infections can happen quickly, hence a "Menstrual Missile".
Amy: Why did you call me over here?
Anna: I went to a party last night, forgot to take out my tampon. Got myself a Menstrual Missile.
Anna: I went to a party last night, forgot to take out my tampon. Got myself a Menstrual Missile.
by Erzie Werzie December 14, 2016
Get the Menstrual Missilemug.