Attacking the enemies bases, structures, etc. when the enemy creep-line is SIGNIFICANTLY further away along the lane. So STOP THE BITCHING about backdooring when the creeps are right the fuck next to you.
The act of putting yourself in a position that furthers you from your optimal goal. Doing somethingeven though you know that it is not helping you in life and instead it is holding you back.
I'm really backdooring myself... I failed a test because instead of studying the night before I went out and got wasted.