YOU SAID:

This is the boring preamble, and this is when a guy slacks off.

INTO JAPANESE

退屈な前文で、これは、男がにスラックスします。

BACK INTO ENGLISH

In a tedious preamble, this guy on the slacks.

INTO JAPANESE

退屈は、前文で、スラックスのこの男。

BACK INTO ENGLISH

Boring is this guy's slacks in the preamble.

INTO JAPANESE

ボーリングは前文にこの男のスラックス。

BACK INTO ENGLISH

Bowling in the preamble to this guy's slacks.

INTO JAPANESE

この男のスラックスに前文でボーリング。

BACK INTO ENGLISH

Bowling in the preamble to this guy's slacks.