Are there 2 definitions for "Friends with Benefit"? ?

So, I just met this girl through a friend. We have only met twice but for about 4 hours each time. I asked her out and we are going out tonight. I told her I wasn`t looking for a relationship, she said she wasn`t either. I asked if she was seeking a casual relationship or strictly platonic. she said "NO, not strictly platonic. I would like to have a FWB." then she txted back and said. "When I say benefits, I don`t mean "........what does that mean?