solocup This photo was posted by some friends on Facebook. It looks interesting while at the same time, sounds too good to be true. So doing a little research I found out that it is true but only a coincidence?
Jim Hill at KUNC 91.5 actually contacted the Solo Cup Company and this is what they had to say:

“Thanks for contacting us. We enjoyed your story. Although the lines do align pretty closely with some common liquid measures, in fact, these lines were not intended for measuring anything. This has become part of the folklore around the cup and is – as you say – a happy coincidence.”

Thank you Jim for getting to the bottom of this!
Read Jim’s full article here.
Solo has also updated the above graphic on their Facebook page to suggest non-alcoholic uses for their red cup.