I was in college for 4 years. Start out at 250-260, by the end I was at 330, drank a lot of beer and rye & coke, also ate a lot of fast food. Currently 260.
During my studies I stayed at the same weight of 190lbs. The weightgain started when I got my sedentary job. Less moving, enough finance and neverending apetite made me gain over 110 lbs in 4 years.