I think he trumped it up to make his otherwise mediocre life sounds more interesting.

我觉得他夸大了很多事，让他平庸的一生听起来更有趣。

youdao

youdao

So, many people plod along through life semi-satisfied with a mediocre existence.

因此，许多人因为不满足于平庸的存在而在生活中行迈靡靡。

youdao

What is driving RIM to release a product that feels unreliable, has mediocre battery life (at best) and that lacks table stake applications like native personal information management (PIM) functionality is just unimaginable to me.

FORBES: Has RIM Lost Its Edge?

And yet America, which leads the world in developing new drugs, ranks a mediocre 29th in life expectancy.

FORBES: Just Say No

But the tablet itself was bulky, performance was sluggish, battery life was mediocre and there weren't even that many Android apps designed to be used with a pen.

ENGADGET