Karendipity

when someone is being a selfish self centered jerk, but it works out for the best anyway.

Trump having a temper tantrum and not attending the inauguration was perfect karendipity. He didn't come, and we didn't want him there.

Geek sudoku

The act of arranging geeks together for nerdy activities such as Dungeons and Dragons, Pathfinder, or MMO raids to figure out who is playing what when. Because this involves working around random schedules for the players and needing to get the right mix of their characters it often resembles a game of Sudoku to get all of the people in place.

The game started late because the geek Sudoku took almost an hour to get everyone into a game they could play