A Lead Belly is a term used for an individual with a very strong stomach.

Or in other words its a term for someone who can eat anything and not get sick or die.
Marino: Yo Pasqua! You know that Michael guy? we gave him a sandwich that was filled with rotten sardines, sawdust and dirt off the floor, and he finished it and asked for another!

Pasqua: Damn that man has a lead belly!
by UrBoiRalph December 22, 2021
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Someone who is able to consume large amounts of stuff that is bad for your health without dying
That person drank 4 glasses of methanol and he just showed up the very next day with no clue what we did to his drink, he obviously has a lead belly we should take more drastic measures.
by Hotpies January 21, 2018
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