By The Way I Think I'm Falling in Love With You. It's the first letter of every word in that sentence. It's a way to tell someone how you feel without actually saying it.
Girl:"Some guy said i was ugly."
Boy:"Don't listen. I think ur beautiful."
Girl:"Aw, thnx. btwitifilwy."
Cigarette: Northern slang for a cigarette, used oft by mashed up mancunian ravers becasue of the resemblance of a hot(electric)stove to the end of a lit cigarette. Originated circa 1991 in the early halcyon days of the rave culture; we speculate during a drug fuelled hallucination by said manc.
'fuck me noel, i am bolloxed, is that a ciggy in your mouth, or the stove from me 'nans kitchen'/
General use: 'Give us a stove you cunt'