YOU SAID:

We're gonna have some bday fun and games for the funsies

INTO JAPANESE

私たちは楽しみのためにいくつかのbdayの楽しみとゲームをするつもりです

BACK INTO ENGLISH

We're going to play some bday fun and games for fun

INTO JAPANESE

私たちは楽しみのためにいくつかのbdayの楽しさとゲームをプレイするつもりです

BACK INTO ENGLISH

We're going to play some bday fun and games for fun