Multi-colored Mullet

Okay....I realize that I haven't kept up with the times but I can usually figure things out if given half a chance....especially with the computer as a resource. I must reveal that I am totally lost with this one. What is a multi-colored Mullet? I use to think that a mullet was a fish ... so therefore a multi-colored mullet was one that had been out in the sun for too long...it also conjured up the thought of very fragrent orders coming off the body. Well in researching the web ...see attached photo...I came up with a photo of a multi-colored 50 year old rat tailed mullet. There was no explanation given with the photo so I am left to wonder if the "mullet" is a reference to the old man....his hair style or something else. In order to collect one of these for a scavenger hunt do I bring the whole thing or do I just cut off the green rat tail? Please advise,