One with whom you have an inside joke in which everyday office supplies are used to coordinate and arrange for the execution of sexual acts which may include, but are not limited to, bus riding and cupcaking.
A "post it note" is the signal of lift off in 215. After attending club 307 if you bring a bitch, hoe, or otherwise incapacitated female to the room, a "post it note" is placed (smoothly)(like a gangsta') on the outside of the door. This is to signal that you are currently getting ass.
Gangsta: Yo-- mothafucka-- i'm about to go back to the room and post it note that bitch n' hoe.
Its when you don't have the time or effort to go through with a complete supermanning of that hoe. So you put a post it with a little superman symbol on it, so it looks like a mini cape.
Guy 1: Did you superman dat hoe?
Guy 2: no, I didn't want to whip it out in the office, but I gave her a Post-it Superman dat hoe cape.
Guy1: That's fuckingtight!