1 definition by Human Martini Shaker
Explosive bout of the shits usually caused by excessive keg consumption. Originally derived from a label of cheap domestic beer, it was further adopted via onomatopoeia, referring to excessive noise as said fecal deluge forcefully strikes the toilet bowl. May also be applied to ANY particularly loud diarrhoea.
"Kent Crossley usually gets the blatz pretty bad at about four in the morning and wakes up his downstairs neighbors."
by Human Martini Shaker March 24, 2005