Insert Straw

I saw this on a box of apple juice that I was giving to my son the other day:

Why is "Insert Straw" in quotations?  Is that supposed to be a euphemism for something else?  Ha!

"Insert Straw" - as in, "Wink, wink"
or
"Insert Straw" - as in, "If You Dare!"
or
"Insert Straw" - as in, "Good-luck-with-that-because-you'll-probably-bend-and-break-it-trying."