N3
っぱなし
Leaving something in a certain state, Left as is, Keep on -ing
また電気点けっぱなしじゃん！何回言えば消してくれるの？
You left the light on again! How many times do I have to tell you to turn it off?
Explanation
「っぱなし」 has 2 uses
1Left as it is
Done and then left that way, with blame: 「窓を開けっぱなしにする」 (leave the window open), 「出しっぱなし」 (left out).
誰かがそのドアを開けっ放しにした。
Someone left the door open.
また電気点けっぱなしじゃん！何回言えば消してくれるの？
You left the light on again! How many times do I have to tell you to turn it off?
2Non-stop
The same action or state goes on and on, often tiring: 「立ちっぱなし」 (standing the whole time), 「しゃべりっぱなし」 (talking non-stop).
電話が鳴りっ放しだけど…大丈夫？
Your phone keeps ringing... Is that not a problem?
彼はいつも仕事中は動きっ放しだ。
He always keeps moving while he is working.