Something that is so disagreeable with your spirit that it feels
like its
existence might negate yours.
This goes further than "hate," and implies that you and the object in
question are sworn enemies.
Can be used seriously or, more likely, exaggerated for comedic effect.
Wearing socks with sandals is the bane of my
existence.
The iPhone's autocorrect is the bane of my
existence.
Stephanie's hair is the bane of my
existence.