Is that some sort of racist remark or are there actually yellow dirt? o__O
No. It was a play on don't eat yellow snow. 
Uhh how are yellow snow formed? Rain isn't that polluted?
No...it is from people peeing in it. Thus never eat yellow snow.
OMG. D: That's what it means? 
Yes, that's what it means.I feel disoriented for some reason thinking about it. 
<u< When someone takes their dog on a walk on a snowy day and he does his business
White snow turns to yellow snow
White snow turns to yellow snow
Peeee D:
I was thinking of water and air pollution and what not.
I was thinking of water and air pollution and what not.
Muahahaha no it's much worse XD
And I just had water and I am feeling sick now D: