Any week in a month which is pre-determined by a group of friends. During this week you may randomly insult, assault/attack and or wrestle your friend with no repercussions due to the fact that it is Fight Week! Can take place in any location such as amsterdam for example.
*Charlie Punch's Owen in the Face!*
Owen: "What the hell was that for?"
Charlie: "Its fight week baby!"
Owen: "Charlie you are a useless sack of shit!"
Charlie: "Are you forgetting its fight week?"
*Charlie punches Owen in the face!*