For me it was one long party; la dolce vita.
I took the scenic route, largely because by the middle of the first year I would attend one in five lectures, at best. Of course, this was back in the day before continuous assessments and semesterisation so you could get away with it a lot more.
Instead, it was clubs and societies, pubs and receptions and parties. Running college events and peoples election campaigns. Wearing a tuxedo and speaking in front of a large crowd at the debating societies on a regular basis; at first because I cared about the motions being debated and later because of the never ending stream of groupies.
It was always being on the guest list for all the balls and clubs. And waking up next to one, or two, naked girls who'd I'd met the night before. And reading about myself in the student papers, or watching others read about me. Or articles that I wrote (not about me). And making a not inconsiderable amount of money in the process, by both fair and less fair means.
And then eventually, long after everyone else who had started college with me had graduated and moved on, I completely lost my taste for it, put my head down for a final year, graduated and got on with my life.
My postgrad was different. Went in. Attended lectures. Studied. Went home.