An argument where both parties involved insist that they are at fault, or are more sorry.
**Two people both reaching for the last cookie**
A: I'm so sorry.
B: No, please, I'm sorry.
A: No, I am sorry, I insist, you have the last piece.
B: Absolutely not, this is my fault, you take the last one!
C: This is such a Canadian Argument.
A hockey fight.
"Did you see the Maple Leafs play last night? They had at least two Canadian arguments."