1 definition by person with at least half a br

A myth perpetrated by Creationists and IDiots alike (although they are the same people really). It states that certain bodily systems are "too complex" to have evolved over millions of years despite evidence to the contrary
Creationist IDiot: the human eye is irreducibly complex, it cannot have evolved

Scientist: we have found evidence to the contrary and have run simulations on primitive photosensitive cells which disprove irreducible complexity.

Creationist IDiot: the human eye is irreducibly complex, it cannot have evolved

Scientist: did you understand what i just told you?

Creationist IDiot: the human eye is irreducibly complex, it cannot have evolved

Scientist: I take it you either didn't understand that or you are just close minded towards evolution

Creationist IDiot: the human eye is irreducibly complex, it cannot have evolved

Scientist: ok I'm not dealing with you anymore

Creationist IDiot: We won! he cannot prove Evilution, WE WON!!!
Get the Irreducible Complexity mug.