Marine by insemination

Someone {usually a female} who thinks she has intimate knowledge of the Marine Corps or is a Marine because she has fucked one, is fucking one or married one.

person 1: So Ellie's profile shows she was in the Marine Corps from 1970 - 1990 and that she's a Master Sergeant.

person 2: Nah. That's her previous husbands military information and her new husbands rank. She just thinks she's a Marine by insemination.