To say or do something that is either utterly nonsensical or blatantly moronic.
Having begun in Massachusetts, this word has spread like herpes at a whore house to Conencticut, Rhode Island and New Hampshire.
Raul: "David, why did you shove a can of axe up your ass?"
David: "I thought it would help with the smell."
In this instance, David has clearly oh-ed, as rectal cologne is a very poor idea.