In times considered ancient to even The Ancients themselves, the underprivileged drowned their sorrows with alcoholic rotgut most foul...
...BUT ONE BRAND IN PARTICULAR NOT ONLY ROTTED ONE'S GUTS, BUT THE ENTIRE BODY IN A GLOWING TORRENT OF ABHORENT GORE!!!
Crates of the bottled beverage known as Tenafly Viper are only found in the bowels of ruined liquor stores, groceries, and breweries. These crates are never grouped with conspicuous foodstuffs or artifacts; no, they are always concealed in secret recesses, or buried. Any given site only has 1 crate of the beverage, and each crate contains 4d6 bottles.
Tenafly Viper looks and smells like any other cheap, pungent alcohol. But if even the slightest swig is consumed, the drinker immediately gasps, convulses, and spasms...
...and melts into a puddle of day-glo sludge.
Complete cellular breakdown takes an agonizing 1d4 minutes, and no Saving Throws are allowed. The screams carry for miles.
Each bottle of Tenafly Viper contains enough liquid for 6 gulps.
Unless wearing protective gear, those coming into contact with a melting victim (rushing to aid, dripped on from above, etc.) suffer severe harm from the acidic goop, taking an automatic 2d6 damage per round for 1d4+2 rounds.
Interestingly, those with the Obese Physical Mutation Drawback don't melt when consuming Tenafly Viper...
...instead, they bloat and swell over the course of 2d4 rounds until exploding, unleashing a rain of acidic fluid that coats everything in a 75' radius. Those caught in the sanguine slurry suffer 2d6 damage per round for 1d4+2 rounds.
Sealed bottles of Tenafly Viper can be thrown as grenades, and upon impact, do 1d6 damage for 1d4+1 rounds.
Assuming they survive, those exposed to Tenafly Viper in any of the non-ingested cases mentioned above permanently lose 1d6 points of CHA, due to sloughing, melted skin and the resultant scarring.
As mentioned previously, no Saving Throws are allowed to resist exposure to Tenafly Viper. That said, Mutant Plants and Basic Androids are completely immune to any and all effects of the deadly hooch.