YOU SAID:

I forgot my razor and my armpits are only a little hairy.

INTO JAPANESE

私のかみそりを忘れてしまった、私の脇の下だけ少し毛深い。

BACK INTO ENGLISH

I forgot my razor underarm only slightly hairy.

INTO JAPANESE

私のかみそりの脇の下を忘れてしまっただけ少し毛深い。

BACK INTO ENGLISH

I forgot my razor underarm only slightly hairy.