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4. MPD
Multiple Personality Disorder: An extremely rare mental disorder where a person's mind is split into two or more personalities that attention-desperate teenagers pretend to have so people will think they're unique/cool/troubled/not a loser, etc.
Andy doesn't have MPD, he's just an attention whore.
1. MPD
Mobile Pornography Device
"Oh no! My girlfriend just died! Does anyone have an MPD?"
"Sure, here's my phone. Don't forget to delete the history!"
2. MPD
Multiple Personality Disorder. The act of one user having multiple screennames; esp. for the purpose of being a troll.

Also used to indicate one of said screennames.
"That ass BlackJack is MPDing as Jizz Hitler."
"Yeah, I figured Jizz Hitler had to be an MPD."
by rynne Jun 30, 2004 add a video
3. MPD
Mashed Potato Dick- when one is too drunk to get an erection.. he tries, fails, and the woman feels as if he is throwing mashed potatoes against a brick wall
Matt was sooo wasted he had MPD.
5. MPD
MPD, stands for man period day. For the days wen ur bf or jst a male friend gets moody, lke he has a period.
Moody men = MPD
6. MPD
Multi personality disorder, or DID dissociative identity disorder, is a mental illness in which the person has 2 or more personalities inside one mind. It is often caused when a child is repeatedly sexually, mentally, or physically abused and cannot physically escape the situation.
1) Dan's daughter was raped so many times when she was very little, she has MPD to cover up the pain.

2) Jeff beat his son so much, he made up more personalities so he could forget the pain.
7. MPD
MPD also known as "Malarian Penis Disease" is a sexually transmitted disease, which is usually received when one has sex with skanky girls; specifically ones that "Fat John" has been with.
Jeff-"Hey Mike did you ever get with that chick?"
Mike-"Fuck no! Didn't John get with her? She's probably got MPD."
John-"Fuck you guys.."
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