Years ago, when vaping was a new thing, I tasted Herve cheese flavored e-juice. Never tasted anything so gross. For those who don't know, Herve is a small town in Belgium renowned for its extraordinarily pungent cheese. It smells so bad they have to double-wrap it in aluminum foil, else it stinks up the stores that sell it in no time flat.
The juice maker was a local vaper who wanted to promote his region his own way. The juice was true to the smell of the cheese. Really amazing. I have no idea how he managed that. But it was properly unvapeable. I still have the bottle somewhere - must be a collector
I also heard of spunk-flavored juice, for sex-addicts or something. But I sure ain't sampling that. Yuk!