The act of lighting one's own cigarette using another's cigarette, while both cigarettes are held on each person's lips. Like a [[kiss]], but with the tips of cigarettes as a proxy.

Could be romantic if done between love interests, badass if done between bros, or a tear-jerker if the cigarette is their last smoke.

Compare with [[pocky kiss]] for a more light-hearted and lung-friendly version.
シガーキス