A person who is prolific at dishing out his own passionate opinions, whether they be requested or not. An opinion from a rant merchant is always correct.
"That guy's got an opinion on everything.."
"I know, he's a right bloody rant merchant."
"Always right though..."
"I know, he's a right bloody rant merchant."
"Always right though..."
by RantMerchant October 27, 2009