'Session-jam' is a term commonly used in Bangladesh to refer to the failure of public universities to graduate students according to schedule, due to lengthy closures occasioned by politically motivated violence. Students in public universities in Bangladesh might finish their degrees two years after their compatriots studying in private universities, where session-jams do not occur. A useful source is Private Higher Education in Bangladesh - www.unesco.org/iiep/en/publications/pubs.htm
In music a jam session is when a band gets together informally and they play and sing whatever is on their minds. Like minded people can create new and exciting music.