What does this mean: "shuffle up"? Is it an idiom or a phrasal verb?

[Ronaldo]

My dictionary says "shuffle up" means "Premature shuffling of playing cards by the dealer". But what does "shuffle up" mean in:

"I was "forced" to sit there long enough to watch a man shuffle up the sidewalk to a Mission, and repeatedly throw up."

I do not suppose the man was playing cards.

(Read from http://www.crwrc.org/?action=d7_article_display&Join_ID=82524)

[Daniela]

Dear learner,
As a verb SHUFFLE means to walk by dragging one's feet,
to slide the feet along the floor or ground while walking.
Daniela
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[Guest]

Thanks! It's very clear!

[Mister Micawber]

.
And the up refers to the direction he is travelling on the sidewalk. It is not a phrasal verb in this sentence.
.
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[Guest]

[Jamie (K)]