On the December 23 show, at about the 39 minute mark on the podcast, Johnny from New Jersey called in to ask for a Christmas present suggestion for "this girl i kinda like". To my ears, it is the one and only Larry Da Perv, using a FAKE NORMAL PERSON VOICE. I don't have any fancy voice recognition software or anything, but just listen (or re-listen), especially the way he says Patton (as in the general) late in the call...sort of like the way Larry says Patton (as in Oswalt), seems to me....
Sorry if someone already posted on this...