ha! ha!

Từ điển Oxford Learners Wordfinder Dictionary

ha 1 [ha ha's ha'd ha'ing] BrE [hɑː] NAmE [hɑː] exclamation
1. (also hah)the sound that people make when they are surprised or pleased or when they have discovered sth
•Ha! It serves you right!
•Ha! I knew he was hiding something.
2. (also ha! ha!)the word for the sound that people make when they laugh
3. (also ha! ha!) (informal, ironic)used to show that you do not think that sth is funny
•Ha! Ha! Very funny! Now give me back my shoes.
See also: ↑hah

Word Origin:
1 natural utterance: first recorded in Middle English.