Someone threatens to kill someone else, often by yelling it at the top of their lungs or by simply saying it calmly. Or variations on this theme, most notably with the F-Bomb or with an accent such as "I keel yew!" Hilarity Ensues, especially if the threatened person replies with "Is That a Threat?". If there's no realistic chance of it being carried out, this is also quite a straightforward [...] [tvtropes.org]