____twoism

She is p... Pretty, Protective, Paul?!?!?

Knowing BoC, it's probably some obscure thing one of their friends said when they were teens. I personally like to think it means "perfect" though.

i think it can be anything

That's above your Pay grade

Pterodactyl?

Perhaps math-related: (https://en.wikipedia.org/wiki/P-value) or (https://en.wikipedia.org/wiki/Prime_number). Or (more likely), something completely different.

assumed it was an abbreviation of a girls name like Penny, Paula, Pat. who knows

A Tale of Young Mike and Marcus and Their Friend Peyote.

Marcus: "Was Joni Mitchell just here?"
Mike: "I... I think so."
Marcus: "Where'd she go?"
Mike: "She is peeing."
Marcus: "Mike! I just thought of a cool song name: ...Geometric Piss."
Mike: "Cool! ...Well, uhhh, I um... thought of one too..."
Marcus: "Ya, what is it?"
Mike: "She is P."
Marcus: "..."
Mike: "..."
Marcus: "...Awesome! Let's use them!"
Mike and Marcus: "TO THE STUDIO!!!"

I have certain people in my phone contacts as just a letter. T is my best buddy, W another, and then there was P. She was a girl I really liked. When I found that song, it instantly resonated with me. She was P. We are no longer on speaking terms, but I still love the song.