podrio
Something that is decomposing or rotten. In this context, it specifically refers to a foul, infected wound or a festering sore (it is the local pronunciation of the Spanish word podrido, meaning rotten).
Juancito, what is that podrio you have there, that thing is rotting on you, you are going to die. Do not come near me with that podrio or all those sores will rub off on me.
Automatically translated from Spanish