You won't find this word in a dictionary but I have heard it all my life.
Piroot (pie root) - to search and perhaps plunder, sometimes through your own things but often another's.
Not sure of derivation but suspect it is a combination of "to root out" and "to pirate".
"When my sister wasn't looking, I pirooted through her closet for shoes."
"You can't find your jacket? Go piroot in the laundry room for it."
"I have pirooted this entire house and cannot find a 5/16" drill bit."