A: He’s always joking around, isn’t he?
B: Yeah, his words don’t seem that funny at first, but I end up chuckling.
A: I know, right!
In this situation, what should you say ‘I end up chuckling.’ in Japanese?
Casual
B：つい、くすっとしちゃう。
Note: This is not a word-for-word translation.
Advanced Tips
A word-for-word translation
B：結局くすくす笑ってしまう
It’s grammatically correct and OK in formal conversation or in writing, but it can be a bit stiff in casual conversation.
‘Chuckle’ means a quiet laugh in a positive way and we use the following words in Japanese.
くすくす笑う
くすっと笑う
含み笑いをする
くすくす笑う sometimes describes laughter in a negative way like when someone makes fun of others, so you should be careful when using it.
くすっと笑う is safer to use than くすくす笑う. It usually means pleasant laughter.
含み笑いをする also has two meanings. You can use it for both; for laughing with satisfaction and for laughing that hides another meaning, especially a bad one.
