Top definition
When in the midst of a conversation, one participant goes into a random, unprovoked rant about President Obama.
You should have heard my father's R.O.R. random Obama rant last night. During dinner, for no apparent reason, he stood up and shouted, "That President Obama has a fake birth certificate!"
by tripp1009 January 27, 2014
Get the mug
Get a R.O.R. random Obama rant mug for your mama Nathalie.