unbelievably fantastic, so much so that no other word will do. derived from a misspelling of "spectacular" seen on a high school student's essay.
last night's party was absolutely spantacular.
by blipper52 September 01, 2007
1 more definition
The Pacific when viewed from Central America's continental divide is spantacular, especially under heavy influence of psilocybin.
by snaab May 13, 2005