Male Parental Unit refers to the husband of the married girlfriend for which you are having an extramarital affair with.
What is your alibi for the MPU this week? I have time to hook up. The MPU just took the kids to the ballgame.
MPU (mobile party unit). A core group of partiers who always party together, week after week, regardless. They MPU consists of only the most intense individuals who stay true to partying.
Joe: So the MPU rolled up to Gary's house last night.
Bill: Dayumm, those guys are hardcore
Joe: Fuck yeah they are, they left at noon the next day and had a box of bagel bites and Keystones for breakfast.