P Base Four Minus One Edit Meaning

1.

If you want to be really tricky, instead of saying P base three you can curveball it by saying P base four minus one. A P3 was originaly an unfinished drawing of a penis, but now has come to mean penis.

I started drawing a penis on my friend's homework but I only managed a p base four minus one.

"Quit grabbing your P base four minus one in public, Mark, it's impolite."