Cool Bug - We Broke the Game

Just a bug that we found how to replicate. It happened to me the first time in a game and I was wondering how my lane was always pushed to tower. The way it happened to us did not involve a heimer. As a matter of fact I don't know how it happened except that our creeps were blocked and it almost killed a katarina with 3000 health and shunpo (massive dodge) in 1 second.