YOU SAID:

Man I have to smoke a bong

INTO JAPANESE

私はボンを喫煙しなければならない

BACK INTO ENGLISH

I have to smoke Bonn

INTO JAPANESE

私はボンを吸わなければならない

BACK INTO ENGLISH

I have to suck Bonn

INTO JAPANESE

私はボンを吸う必要がある

BACK INTO ENGLISH

I need to suck Bonn

INTO JAPANESE

私はボンを吸う必要がある

BACK INTO ENGLISH

I need to suck Bonn