a very minor problem - not the end of the world, but the world would be better without it.
Put my socks on today and found one of them has a tiny hole near the top edge. What an embuggerance!
Accumagation accumagate meaning anything which could be considered an inconveniance, hinderance or obstacle.
Being stuck in a traffic jam when you're on your way to a conference you've been invited to because you have developed a way of preventing traffic jams.