Top definition
A rhetorical observation made whenever another human is observed to be making an expensive or potentially fatal error.
Person A: I'm going to put all my money into dotcoms
Person B: Evolution in action, man

Employee A: Bob showed up drunk again to work today
Employee B: Evolution in action

Action: Motorcyclist riding without helmet
Person: Evolution in action
by srnsf March 17, 2006
Get the mug
Get a Evolution in action mug for your brother-in-law Manley.