YOU SAID:

he groped her thumb, it was weird

INTO JAPANESE

彼は親指を掴んだ、それは奇妙だった

BACK INTO ENGLISH

He grabbed his thumb, it was strange

INTO JAPANESE

彼は親指をつかんだ、それは奇妙だった

BACK INTO ENGLISH

He caught the thumb, it was strange

INTO JAPANESE

彼は親指をつかんだ、それは奇妙だった

BACK INTO ENGLISH

He caught the thumb, it was strange