whiff

[F]rom under a pile of stones [they] drew forth the new-slain corpse of a cat. […] 'Well-nourished old lady, ain't she?' said Stalky. 'How long d'you suppose it'll take her to get a bit whiff in a confined space?' / 'Bit whiff! What a coarse brute you are!' said M'Turk. 'Can't a poor pussy-cat get under King's dormitory floor to die without your pursuin' her with your foul innuendoes?'