The first I called “worm stuff.” It’s what our parents gave me as a kid when they suspected some intestinal wormage. I don’t recall the product name but it was a powder that came in satchets. The powder was disolved in tap water to produce a purple solution that had a uniquely vile taste and smell that filled your mouth, nose, ears and brain.
As soon as I read the thread title I thought of this stuff. Ooh it were vile alright. 😥
Inadvertently took a big swig from my can of lager at a party, only to discover that it was the identical can next to mine which had bin used to stick fag ends in. Nasty.
Did a similar thing with a cup containing some washing solution stuff my mum had bunged on the side of the sink, as a child. Was old enough to know not to drink stuff I din’t know what it was, but a moment of madness.
Nastiest stuff what people actually drink for enjoyment what I’ve tried has to be that Aquavit stuff. Proper, proper ‘orrible.