The difference between a barry burton and A bartlett is that a barry burton is A very intense poo (may result in stinging ) while A bartlett is A man who acts camp/ homesexual /gay but has not yet come out of the closet or it is not known whether they are homesexual. In some circumstances, a bartlett can mean a gay as well.
a barry burton Example :
After a rather exessive meal at a classy restaurant the need for a poo has heightened. This results in a long serious poo in the restaurant rest room or a random toilet. The poo can take upto an hour leading to serious mental strength loss and the waste (poo) results in an image like the late great Barry Burton hence a Barry Burton .
A bartlett Example:
I looked across at him.. I could tell he was a bartlett by the way he interacted with those girls What a bartlett!