also: バースデイケーキ
noun
birthday cake
A cake made or bought for a birthday celebration. Common in modern Japanese, often decorated with candles and a message.
友達の誕生日にバースデーケーキを買った。
I bought a birthday cake for my friend's birthday.
バースデーケーキにろうそくを立てて、火をつけた。
We put candles on the birthday cake and lit them.