cigarette end 
noun British
The unsmoked remainder of a cigarette.A schoolboy arsonist flicked a lit cigarette end, sparking a major fire that caused an estimated £30,000 of damage to a supermarket....
- Investigations are now under way, but the station commander said that the fire could easily have been caused by something as simple as a discarded cigarette end.
- It was a major leak and it could have been disastrous if someone had flicked a cigarette end near to it.
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