What is the meaning or full form of PDA not the portable digital assistant i mea!

Question: What is the meaning or full form of PDA not the portable digital assistant i mean the other one!?
Answers:

Public Display of Affection!. you mostly get it at high schoolWww@Enter-QA@Com

Public Display of Affection!.Www@Enter-QA@Com

Public Display of AffectionWww@Enter-QA@Com

public display of affection!.!.!.i should know, i got in trouble for that alot when i was in school!.!.lolWww@Enter-QA@Com

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