A P.I.C. is a female-friend to a man, or male-friend to a woman. The essential quality of a PIC or P.I.C is that there is no association or interest between the couple other than friendship.
"Hey, I have an extra ticket to this concert. My wife can't make it and I need a P.I.C."
"I let Jake hang out with Susan, she's his PIC. But I wouldn't let Samantha near him in a second unless I was there."
another term for a station wagon, mini-van, or any other kind of vehicle that is targeted at the "family" demographic(also M.A.V.)
"Tactical advantages aside, the M.A.V. is top of the line for the holy warrior troop transport manufactured by the Church of Latter Day Saints Military Industrial Complex. Also great for family trips...to heathen lands."