When something goes terribly wrong, beyond control. When life sucks. Similar to sods law.
The traffic is horrific, you are sad next to a smelly tramp on public transport.

Your pram brakes mid journey, your 3 year old child is stuck within the broken pram. You have a two mile walk home with your shopping, broken pram and child.

A person would BIOP!!
by koxy333 September 9, 2011
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Bring Your Own Poison

Meaning that everyone has to bring his own drink ( alcoholic or not )
I'm broke so, Biop for tonight's party.
by miwi-kiss April 27, 2017
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