Whang

v.

To detect or perceive, as if by the sense of smell.

In use

Jaynee boy, what a whang, did you just layve off ye dirty bollix? A rat must have crawled up yer hole and died!

Let Lawrence Muck translate it to posh English for you
Lawrence Muck

Hello. Lawrence Muck, at your service. Would you like me to translate 'Whang' in use for you?

Good heavens, what a stench! Did you just break wind, you filthy scoundrel? A rat must have crawled up your posterior and expired!