The audience's tradition of chanting "Luuuuuuke" continues in force today and was also done by Peter, the panel and the audience when Luke Burbank spectacularly won the Lightning Fill-in-the-Blank round.
The thick Chicago accent that Carl used in the first Limerick flummoxed the listener contestant, who is a court reporter and transcribes what is said in court. He quietly repeated the last words of each line in the second limerick, to which Peter and the panel picked up. He also had a wee bit of a hard time trying to come up with the correct rhyme for the last limerick.
Someone peeped in while Peter was doing the intro for the Lightning Fill-in-the-Blank round. Amy tried to get Peter and Carl accept "monkey" as a correct answer, but it wasn't the first answer she provided, which was "tiger", and the correct answer was "chimpanzee". A chimpanzee is an ape and not a monkey, which Peter said that listeners would write in if the two were mixed up.
"Get these mother-farting cows off... this mother-farted (sic) plane!". Enough said.