the possibility that a person that you've just met could become someone you would consider a friend or social acquaintance. To become one's peep friend.
the ability and skill in which one uses to plank larger or more challenging obstacles for the humor or entertainment of the internet or for people watching
person 1-"I saw bob the other day plank a ledge 50 feet upoverlooking the downtown area"
person 2-"Yeah that guy has some real plankability"
The moment when that cute thing you type online sounds dumb when you say it out loud in real life. Like when you actually say "sneks" out loud.
"Hey, come check out this reddit for sneks."
"For what?"
"For sne-... Never mind I just realized this is stupid and a waste of everyone's time. "
"You just had Online Phonetic Palatability Disillusionment didn't you"
"Yeah, it hurts a little."