2) To ask someone if they have tweaked on something.(verb)(twack-a-lacked)
3) Refering to the state of mind after consuming a substantial amount of high quality METH.(adj)(twack-a-lackin')
2)"What in the hell have you twack-a-lacked on now?"
3)"Damn daw' ya pupils are fuckin huge! Are you twack-a-lackin?"