this is the girl/guy that you call when you are drunk and horny. You wouldn't have sex with Plan F when you are sober, but you didnt pick up anyone at the bar and cant get ahold of anyone else. Plan F is the person that no matter what time it is, he/she will always let you come over and have your way with them.
GUY1: "Ahh man, I was so wasted last night."
GUY2: "Did you meet up with Kim?"
GUY1: "No, she fell asleep and I couldn't get ahold of any of my other booty calls, so I went to Plan F's house and woke her ass up."
GUY2: "Eww, damn you must have been desparate."
GUY2: "Did you meet up with Kim?"
GUY1: "No, she fell asleep and I couldn't get ahold of any of my other booty calls, so I went to Plan F's house and woke her ass up."
GUY2: "Eww, damn you must have been desparate."
by silkysmooth85 September 21, 2009