1) To ask someone in a nonchalant manner if they have some shit(meth) for sale.(verb)
2) To tweak on something.(verb)
3) Refering to the state of mind after consuming a substantial amount of high quality METH.(adj)
Where and why do you have all those pointless things? I carry them in my twack pack. Never know when you'll need a broken pen, tape, hose, caulk , wood glue, and empty bottle bro.
Look she has more friends than yesterday. No I think they are becoming a twack pack.