Top definition
the way an athiest or non-believer can express with utmost certainty that they are telling some-one the truth (as far as they know it to be).
"I swear to Darwin on a stack of Gods, Kirk Cameron is a Dumb Dick !!!"

"I didn't drink the last beers in the fridge.....I swear to Darwin on a Stack of Gods."
by scurvyseapup2 December 03, 2009
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