flesh out

verbs

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