まるまる丸々marumaru
1.
Describes something that is distinctly round or circular in shape, conveying a sense of fullness or completeness.
2.
Refers to a state of being noticeably robust or well-rounded, often used to describe a person's physique or appearance with an affectionate connotation.
3.
Implies an all-encompassing or total quality, suggesting something that is complete or fully realized in relation to a certain context or duration.
Example:
それから、毎日おじいさんと、おばあさんがこねこにミルクを飲ませましたら、こねこは、まもなく、かわいらしいまるまるとしたねこに、なりました。