line piece 

A typical ironic turn of fate, just as in a tetris game the line pieces appear only after you've blocked the main column.

A: Man, just when I thought she wasn't interested in me and I started flirting with another girl, she turns up.
B: Line piece!
A: Indeed, the Tetris God has forsaken me.

line piece by Redfrettchen January 14, 2010

Line Piece Dependency 

In Tetris, this problem occurs when a single column remains open and the player needs a line piece to fill it. A psychological dependency also arises as the player prays to the Tetris God for the piece.

This situation is most dangerous when the rest of the field is becoming stacked higher and the player needs the line peice before he/she can focus on the rest of the game. Often, there is potential of acheiving tetris, hence the disinclination towards blocking the column and focusing on the increasing height of the rest of the blocks.

Line Peice Dependency is normally a voluntary condition, but can lead to disaster if the God of Tetris looks unfavourably upon you.

And on the 8th day, the Tetris God granted a line piece to alleviate the player's line piece dependency, and there was tetris, and it was good.

Line Piece Dependency by Dick V. Gina April 17, 2010