an older woman who wants to fuck a younger guy who hasn't lost the sluttyness and vigor of a younger male in his sexual prime. the womans sexual prime is in her 30s
by phlux January 05, 2003
by phlux December 04, 2002
An idiotic modern word that has crept out of technical use in game theory to compete in pseudo-intellectual discourse with the real English word satisfying the same part of speech (effectiveness), which should be used instead in almost every case. Not to be confused with efficacy, which actually has a different meaning.
The effectivity of the word "effectivity" is nonexistent.
by phlux October 03, 2003