Franklin describing hard work setting type:
"But so determin’d I was to continue doing a sheet a day of the folio, that one night, when, having impos’d my forms, I thought my day’s work over, one of them by accident was broken, and two pages reduced to pi, I immediately distributed and compos’d it over again before I went to bed;"

pi
n.,
pl. pies 5see PIE26
1 a mixed, disordered collection of printing type
2 any jumble or mixture
vt.
pied, pie4ing or pi4ing to make jumbled; mix up (type)

As slang, as a college prank to play a practical joke on
another student, such as short sheeting his bed, or filling it with furniture from other rooms. My room-mate
nailed my shoes to the floor, and put a bottle of ink with string intended to pull cap off, but it didn't fool me.
With help, I put so much furniture into his room, so that he couldn't open door wide enough to get in, then I went out window, with string attached to latch, so I could lock the window from the outside. Bare essentials of a long story. College humor.