It's "Top Bants", we only said "Top Pants" this episode because Jinx apparently misheard us (or mistyped when she commented earlier).

Bants is short for banter, which is essentially just playful chat. Saying "top bants" is us saying that we have thoroughly enjoyed the banter that has gone on, and it is top tier entertainment. It is a horrible saying and it makes you sound like a prat.

Which is why Matt keeps saying it. :3