A hubble bush is something that is constantly in your way or in your way at a time when it is very inconvenient.
Drunk Guy: Whoa I can't get out of my house there's a hubble bush!!
by LG nig June 08, 2012
Something that is constantly in your way or in your way at a time when you are trying to accomplish something.
The cops were a Hubble bush when the robber tried to escape the bank.
by LG nigga June 08, 2012