As per our communication policy, please note that your question is currently being discussed by the ARC and once some clarification has been made, will be posted here (removing this post). Depending on the level of clarification and discussion (and potential involvement of the Owners or other national staff, if needed) this may take time.
The "speaking poorly" comment should be taken as a roleplaying hint that they can interpret as best suits their particular character and tribe. There's no specific hard and fast rule saying what that means, because it will be different for each character. Some barbarians will simply speak more directly, while others might speak in grunts and hand gestures.
Not every bit of wording - especially those around roleplay (or "soft rules" instead of "hard rules") needs to be defined into a bright-line case. Sometimes a cigar is just a cigar