flesh1 W3 [uncountable]
the soft part of the body of a person or animal that is between the skin and the bones:
a freshwater fish with firm white flesh
the skin of the human body:
His flesh was red and covered in sores.
the soft part of a fruit or vegetable that can be eaten:
Cut the melon in half and scoop out the flesh.
if you see someone in the flesh, you see someone who you previously had only seen in pictures, films etc:
He looked much shorter in the flesh than on television.
to make someone feel frightened, nervous, or uncomfortable:
The way he stared at her made her flesh creep.
someone who is part of your family:
How can he treat his own flesh and blood that way?
the physical human body, as opposed to the mind or spirit
the pleasures/desires/temptations of the flesh (=things such as drinking, eating a lot, or having sex)
8 British English
to give more details about something to make it clear, more interesting etc [= flesh something ↔ out]:
I'll try to put some flesh on the plan Margaret has outlined.