"Watch out for overpasses and hop-ons. You're going to get some hop-ons."
By Joana
Hop In
The act of entering, usually, in some vehicle. Normally said with the goal of expressing a cool, stylish, and fast way of making your point, instead of "get inside of". May also be used with "into", instead of "in".
person 1-Hey bro, did you finish washing my car?
person 2-No because I was going to wait till it cooled off outside.
person 1- Well hop to it, I got a date in about an hour.