become flat

To lose carbonation or fizz, typically used for carbonated beverages; also used metaphorically to describe something that loses its energy, excitement, or effectiveness.

• 🇵🇹Perder o gás ou a efervescência, geralmente usado para bebidas gaseificadas; também usado metaforicamente para descrever algo que perde a energia, o entusiasmo ou a eficácia.

1. Lose carbonation A2 informal

   To lose the bubbles or fizz, typically referring to a carbonated drink.

   • I left the soda open, and it became flat.
   • This beer has become flat; it tastes awful.
   • Make sure to close the bottle tightly so it doesn't become flat.

   🇵🇹Perder o gás

2. Lose energy or excitement B2 informal

   To become dull, uninteresting, or lacking in energy.

   • The party became flat after the music stopped.
   • His jokes became flat after he repeated them too many times.
   • The conversation became flat when no one had anything new to say.

   🇵🇹Ficar sem graça