Main Entry: pik·er Pronunciation: 'pI-k&r Function: noun Etymology: pike to play cautiously, of unknown origin Date: 1872 1 : one who gambles or speculates with small amounts of money 2 : one who does things in a small way; also : TIGHTWAD, CHEAPSKATE
this will explain it: http://www.elitetrader.com/vb/showthread.php?s=&threadid=24011&perpage=6&pagenumber=12