PHD Stands For : Pretty Happy Dog | Pup Has Discipline | Premium Hot Dog | Paltry Hunka Dough | Partial Head Damage | Particularly High Deception | Passed High school with Difficulty | Perfect Hair-Do | Perky Happy Disciple | Permanent Head Damage | Permanently Head Damaged | Persistently and Habitually Dumb | Personal Hygiene Disorder | Piled High and Deep | Piled Higher & Deeper | Playa Hatas Degree | Player Hating Degree | Please Hire Desperate | Poor | Positively Head Damaged | Power Hungry Dog | Prat of the highest Degree | Pre-Historic Dinosaur | Pretty Handsome Domestic | Pretty Heavy Drinker | Pretty High Dude | Probably Half Demented | Professionals Hu Dare | Promotion in Human Devolopment | Publicly Horrific Display | Push Here | Proper Husband Discovery | Push Here | Project Half Done | Piled Higher and Deeper | Portable Hard Drive | Post Hole DiggeråÊ | Presbyterian Hospital of Dallas