A pillow partition is a set of pillows or large body pillow initially placed between a male, usually claimed to be just a friend
and female sleeping in the same bed who are not lovers publicly and have no other option for sleeping arrangements. The main purpose is to give the female who may have a boyfriend or may not want the outside world to know of her whorish
ways a solid excuse to avoid judgment from her keeping of additional bedfellows
and/or negative reaction from significant other.
Girl - "My boyfriend is going to kill me if he finds out we only had one bed in this room."
Boy - "It's ok, I can whip up a pillow partition for you to take a picture of in case he gets upset. We can get rid of it after the picture."
Boy - "I thought you said we could at least cuddle?"
Girl - "That was until you surprise attacked me with a spontaneous erection
Boy - "I'm not sure that was so spontaneous, we should be safe and put up a pillow partition tonight."
Girl - "I swear I never sleep in the same bed with boys unless I'm dating them. We must use a pillow partition tonight."
Boy - "That is what most whores