noun- a girl that will tell you an immense lie just to have sex with you. The lie in question pertains mostly to their relationship status.
verb- a girl doing the action listed above. (can be used as K Sullied or Sullied)
Noun- "Yeah, she tried to pull a K Sully on me by saying her and her boyfriend weren't together anymore and that she wanted only me."
Verb- "She completely Sullied me last night by saying that she was single."