Japanese by Example
Learning through examples in manga

Leaving toys scattered about with 〜っぱなし

Grammar Explanation: Leaving something as-is with 〜っぱなし

Manga panel from からかい上手の（元）高木さん showing example of Leaving toys scattered about with 〜っぱなし.
からかい上手の（元）高木さん » Volume 11 » Page 34

Chi’s mother comes into the room.

お母(かあ)さん:
「おもちゃ散(ち)らかりっぱなしだよ。」
“Your toys are leftscattered about.”

The use of っぱなし means that Chi has scattered her toys out earlier, and they are still scattered out. This has a negative connotation, as Chi should have put her toys away after playing with them.