First, do not panic. A single lick of a lead fishing weight won’t turn you into a zombie. Your body will absorb a tiny, negligible amount. Spit it out, rinse your mouth with water, and drink some milk (calcium inhibits lead absorption, and it’s a great excuse for a glass of cold milk).
Second, do not test this for clicks. I’ve read accounts from people who worked in battery factories. They say the taste of lead dust on their lips after a shift was “indescribably foul,” like “licking a dead TV” mixed with “the bottom of a rusty toolbox.” It’s a flavor that doesn’t leave your memory—or your bloodwork—for a long time.
Finally, know this: the taste is your body’s last warning system. It’s the equivalent of your tongue screaming, “Sir, please stop, I do not consent to this!” Listen to it. The flavor is a parasite wearing a sweet mask. It tricks you with sugar, then steals your IQ.
So, to answer the original question: Lead tastes like an antique robot’s kiss—initially alluring, chemically sweet, and then immediately regrettable. It’s the taste of ancient plumbing and poor health decisions. Resist the urge. Order a lemonade instead. It’s sour, safe, and won’t make you dream in Roman numerals.