This is the 5719th most frequent Japanese word.
ちまっ
"ちまっ" is not a standard Japanese word. It may be an onomatopoeic or casual/slang expression, depending on the context.
In this sentence, 'ちまっと' describes something fitting neatly, and is used to highlight the compact and convenient arrangement.
この小さなサイズでちまっと収まるので便利です。
This compact size fits neatly, making it convenient.
Here, 'ちまと' is used to describe flowers arranged neatly and compactly, emphasizing aesthetics.
花がちまと置き並べられていて可愛いです。
The flowers are arranged neatly, and it looks cute.
In this instance, 'ちまと' is used to describe the careful and tidy preparation of the bento box, reflecting admiration for the detail.