flesh out Meaning, Definition & Usage

1. verb make fat or plump
   fatten up; fat; fill out; fatten; fatten out; plump out; plump.
   
   • We will plump out that poor starving child
2. verb add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing
   expound; lucubrate; dilate; expatiate; elaborate; enlarge; exposit; expand.
   
   • She elaborated on the main ideas in her dissertation
3. verb become round, plump, or shapely
   fill out; round.
   
   • The young woman is fleshing out

WordNet