Definition

1. Idiom (Thành ngữ):
   • To be beside oneself with joy; to be overjoyed: This idiom describes a state of extreme happiness or delight, often feeling as if one's heart is celebrating.

Usage Examples

• Idiom:
  • Nghe tin con thi đỗ, bà ấy mở cờ trong bụng. (Hearing the news her child passed the exam, she was beside herself with joy.)
  • Đội bóng chiến thắng, cổ động viên mở cờ. (The team won, and the fans were overjoyed.)

Advanced Usage

• The idiom is most commonly used in the full phrase "mở cờ trong bụng" (literally: to unfurl flags in one's stomach), which vividly pictures an internal celebration.

Variants and Related Words

• Vui mừng khôn xiết (idiom): to be immeasurably happy.
  • Cô ấy vui mừng khôn xiết khi nhận được quà. (She was immeasurably happy when she received the gift.)

Synonyms

• Be over the moon: to be extremely pleased or happy.
• Be elated: to be ecstatically happy.
• Be jubilant: to feel or express great happiness and triumph.

Related Idioms

• Mừng như bắt được vàng: to be as happy as if one found gold (to be thrilled).
  • Anh ấy mừng như bắt được vàng khi tìm lại được ví. (He was as happy as if he found gold when he retrieved his wallet.)

1. Be side oneself with joy