look up any word, like thot:
 
1.
When someone rolls a 4-5-6 in cee-lo
First I was losin then I started throwin headcrack
after headcrack, got my bread back - Big L, Casuaties of a Dice Game
by Tha Kid October 19, 2004
 
2.
Rolling a 6 while playing a c-lo..
*He rolled two threes and a six.* "head crack!"
by stelli January 02, 2007