1) noun, singular. the bad end of a deal; the "shaft". 2) verb. to leave a party or gathering without bidding companions or the host farewell 3) an unpopular drink, dance move, and sexual maneuver all created by the same unfortunate individual.
1) Ted bought some weed from his friend Justin, but when he counted his change, he realized that Justin had given him the johnny hop; 2) Megan took one look at the other guests at the New Years party and decided she would johnny hop as soon as she got the chance.
1. To poop & go anonymously (origin: john doe); 2. a toilet crawl (house to house, bar to bar, etc.) where one partial-poops at several locations and allows a "one-sitter" to span the course of the day or evening; 3. Indiscriminate sex on a large scale with people named John, Johannes, Juan, Jan (also accepted: Jack, Mark)
Mark: "Holy shit this bookstore is awesome! That chick just had sex with 4 dudes named John and then me!"
Brett: "It's cool dude, Mark is also accepted."
Mark: "I guess that's why they call it a Johnny hop!"
(Mark & Brett hug)