gas deodorizer

a modern gadget, when attached to the inner backside of an underwear absorbs the foul smell and instead emits a beguiling aroma of choice, making the host of the smells a very welcome companion.

Claudia: "I bought daddy a box of gas deodorizers so you can stand him.
Tom: "No wonder there is a citrus odor in the house all the time: I've come to hate oranges for life!"