The conjunction of the words prostitue and hooker. Used to describe a girl who is slutyer than both a prostitue and a hooker, or used as a derogitory term to someone you don't like.
Ex. 1 "That Courtney is such a prostihooker, she probably spends most of her time on her knees." Ex.2 "Leave me alone you fucking prostihooker!!!!"
bag, satchel, or some other large means of conveyance (body bag, over-sized trash bag) which is used in the transport of corpse(s) of coked-up, dead hooker(s) from scene of crime to alleyway, dumpster, woods, etc.
The call-girl we ordered for Jaline's birthday party had an aneurysm in the middle of giving her a lapdance, so we had to stuff her in a prostitote and haul her ass out to the dumpster.