An error in a conversation where the speaker involuntarily grunts like Rick Ross in the middle of a conversation.
Person 1: Hey man, could you pass the-WHUH-soda?
Person 2: What the hell was that?
Person 1: Sorry, that was just a rossian slip.
Person 2: What the hell was that?
Person 1: Sorry, that was just a rossian slip.
by Jesussaur February 13, 2013
Get the Rossian Slipmug.