The question is incredibly difficult. Everyone associates this smell with different things. To some, it may remind the smell of damp earth, and to others, the smell of stale chicken meat. In any case, the smell is unpleasant. In addition, prolonged inhalation of it can cause loss of consciousness in sensitive people.
You can read about the transportation of the bodies of the dead here - https://venokmoskva.ru/gruz-200
Here you need to pay attention to the "freshness" of the corpse. I will express the subjective opinion that I have formed after visiting the forensic medical bureau during my studies at the university. At autopsy, a recently deceased person smells like a freshly cut piglet (the similarity of human and pig DNA by about 98% probably plays a role here, I don’t even know), and already a bit lying dead smells like dried ham, seasoned with cardboard soaked in the rain. p>
I don't remember the name of this flower ... It is coral in color. If you pick it off and put it in water, it starts dying like other flowers. During life, while this flower is attached to the ground, it smells sweet and tender, and in a vase of water it is already sweet and corpse.
We also had a bush behind our house that bloomed only in March. His flowers were small and pink. My grandmother really did not like this bush and said that it smells like carrion.