While Cat says "Well, not that we don't like your brother," a guy wearing a flannel shirt walks in. The camera then faces Sam and she says "But, we hate him." When the camera faces Cat again, the guy with the flannel shirt walks in again.
Sam said that they saw David Schwimmer in a gas station, but in iCarly episode, "iBelieve in Bigfoot," using context clues, David Schwimmer clearly died on Celebrities Underwater.
Sam & Cat don't provide a definition for "lumpatious", and they couldn't use context clues from the Governor's speech, because a multitude of words could have fit there.