2 definitions by Silentiea
A Jackism is a word or turn of phrase used by Colonel Jack O'Neill int the television series 'Stargate: SG-1'. Common Jackisms are listed below, but there are others.
by Silentiea October 10, 2006
A cross between freak and mutated. Something completely an totally Cthulu-like in it's abstract freakiness
by Silentiea September 20, 2006