YOU SAID:

he put his peepee on the phone

INTO JAPANESE

彼は彼の覗き見を電話にかけた

BACK INTO ENGLISH

He phoned his peeping call

INTO JAPANESE

彼は覗き見に電話した

BACK INTO ENGLISH

He called a peeping look

INTO JAPANESE

彼は覗き見をした

BACK INTO ENGLISH

He peeped in.

INTO JAPANESE

彼は覗いた。

BACK INTO ENGLISH

He looked into me.

INTO JAPANESE

彼は私を覗き込んだ。

BACK INTO ENGLISH

He looked into me.