Someone that uses the word 'Jain' excessively, Usually not in it's proper form.
"you are a jain, your fish is a jain, your mom is jain, the Cake is a jain". It is clearly impossible for a cake to actually be a jain. or a fish really for that matter, and in this context it is highly unlikly that 'you'r mother is actually a jain. Therefore the person speaking is a Jain-aholic