Perhaps more than that

From OAPedia.com

The line "Perhaps more than that" refers to an incident involving Jimmy, Anthony, and Master Po, which has been goofed on ever since. The incident involved Anthony asking Jimmy about how much certain houses cost, to which Jimmy gave a really low number, which Jimmy was doing sarcastically as part of a regular joke he does. Master Po, not getting the joke, replied with "Perhaps more than that" in all seriousness.