I read it as go all the way.

I was hoping it meant light in terms of weight... Guess I gotta stay on my diet then lol darn it

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Yeah basically. I kind of interpret it two ways

If you're going on a long hike for example, don't leave your meals behind and need someone elses

Or

Make sure you get enough sleep and eat your wheaties so you can pull your weight.

Esentially, don't be the weak link.