a conditional/proposed action that could/would possesses a humorous nature. for example if ones actions are considered to create banter amongst the situation then they or their respective action might be considered banterful
conditional tense: that WOULD be so BANTERFUL
cheeky cunt 1: can't we choose our own teams?
scrublord PE teacher: why?
cheeky cunt 2: because it WOULD be more BANTERFUL
Someone who has impressed with their Banter on a regular basis can be referred to as this term for the king ding of Banter, someone who is above all others when it comes to Bantering
You know what, it's about time that we ordained you as the Archbishop of Banterbury