Kuso is basically means 'Shit' and you can use it for 'damn'. You can use it when you are losing or when something unpleasant happens. Kuso is a very versatile word. kuso is commonly used as a swear word+ or exclamation of frustration, comparable to “shit!”
You can say kuso in many ways like: くそ! (Kuso) /くそー! (Kusoo) / くっそー! (Kussoo) / くっそオー! (Kussoooo) = damn!
2. クソヤロー (kusoyarou) = fucking/stupid bastard; son of a bitch; shit guy
ヤロー means son of a bitch/bastard. It usually used towards men. Kusoyarou is a harsh word than bakayarou.
Other words used by Naruto in the panel:
このクソ (kono Kuso) = This shit / (you) piece of shit
うんこ (unko) means poop or shit. It consider a more childish way of saying " Poop".
'no yarou' uses after somebody's name. Name + no yarou. サスケのヤロー (Sasuke no yarou) = Sasuke, you bastard.
アロエヤロー (aroe + yarou = Aloe bastard)
バカヤロー (baka yarou) = Fucking/stupid bastard; son of a bitch; Idiot guy; dumbass
あのヤロー (ano yarou) = That bastard; That son of a bitch
3. クソ喰らえ (kuso kurae) = fuck you! ; Eat shit!
クソ (kuso) means "shit". 食らえ (kurae) means "eat this!" or "take this!"
「バカ」 「ばか」 「馬鹿」 (baka) = stupid or Idiot. Baka is often written in katakana to emphasize the word. Katakana can be sometimes used like capital letters. Baka more common in the Kanto region eg: Tokyo, Kanagawa, Saitama, chiba, Gunma etc.
「あぼ」 「アホ」 「 阿保」 (aho) = stupid / idiot / silly. Aho is often written in katakana. The kanji one is the least common style. Aho is more common in the kansai region eg: Osaka, Kyoto, Nara, Wakayama, Hyogo etc.
People use kodomo to say 'you are a child' or 'childish'. You're still a child, huh?...Naruto!
6. カス (kasu) = (you) piece of shit/Scum
カスやろう (kasu-yarou) = scumbag; fucking/stupid bastard; son of a bitch
Kasu is harsher and worse than kuso (yarou) or bakka (yarou)
この ガキィ(Kono Gakī) = This/You brat!
Gaki refers to a child. It uses when a child is annoying or it uses as a negative sense to refer to someone who is childish. It is a bad/vulgar slang.
If you add kuso in Gaki :
クソガキ (kuso gaki) = shitty brat; little shit; bastard
8. ちくしょう (chikushou) = Damn it!
Chikushou uses when something bad happens or when you are upset.