In today's usage, it refers to a perceived gap between younger people and their parents or grandparents.
Generation gap should have been solved in the future
The most perfect human being to grace the earth, these people are the best at everything ever.
You see Jeremiah over there, I think he's a tree gap hitter
Last night I was going to town on this girl. Had huge 70s style bush. Should’ve saw the Buffalo gap I left on her
Extra-heavy elastic, stronger thread, larger buttons, etc., that help ensure that your clothing won't be either "saggy 'n' baggy" or revealing.
Hot chick: I like guys as much as any of the other chicks around town, but I also value my modesty and appearance, so I always choose clothing that has sufficient gap insurance; I don't wanna give lustful studs or anyone else the wrong idea about me by looking slutty or sloppy.
rural oasis teeming with gay little finkums beating little children in southwest virginia
Person: Why is my car covered in paintballs?
Ghetto Child: Welcome to Fancy Gap Bitch
The gap between the airplane and the boarding ramp where you have to clench onto your personal belongings or they may disappear forever
Holy shit dude, the Gap of Doom on my flight home yesterday was bigger than the Grand Canyon