What you do with a buddy or a group of friends. Involves going from one bar to the next, possibly picking up women or getting into bar fights. Also can be a new experience from bar to bar. Bar Hopping tends to cause participants to become heavily intoxicated, though not always.
"Hey man, let's go bar hopping tonight!"
"Sorry dude, I still have a black eye from the bar fight last night."
"Well how about we pick up some girls?"
"Sure, let's go."
on the last sunday in October, the clocks get rolled back, so on the saturday night before an extra hour can be gained before bars legally have to close. Often coincides with halloween weekend, and the added time makes it one of the greatest nights of the year to go bar hopping, the reverse happens in the spring, so just go to house parties, and at least then it's not around a huge party holiday
The act of wishing you were at a bar imbibing in libations when in actuality you're forced to do something mundane and extremely adult like go to work, show up for court, do laundry, etc.