Wiktionary
vb. (context euphemistic English) (en-pastsnuff it)
Usage examples of "snuffed it".
That was why as soon as the baby did fall silent for any length of time during the night, his first response was to get up and check that this wasn't because the bugger had spontaneously snuffed it.
Audrey dropped her cigarette on the floor and snuffed it with her bare feet, no pain registering.
But the black border round it he did himself after she snuffed it.
He chopped it fine with a single-edged blade and scraped it into a thin line, bent down to it, and snuffed it up a soda straw, moving the straw along the line as he took the long slow inhalation, pressing his other nostril shut.
It was so exquisite, so moving that when he stood his legs felt strangely weak under him, and he snuffed it up rapturously.