Interdimensional Cable 2: Tempting Fate - S2-E8
Old Alien in Wheelchair: I've dwelt among the humans. Their entire culture is built around their penises. It's funny to say they're small. It's funny to say they're big. I've been at parties where humans have held bottles, pencils, thermoses, in front of themselves and called out, "Hey, look at me. I'm Mr. So-and-so dick. I've got such-and-such for a penis." I never saw it fail to get a laugh.
The Wedding Squanchers - S2-E10
Mr. Poopybutthole: Tune in to "Rick and Morty" season three in, like, a year and a half...or longer, to see how we unravel this mess. Ohh-wee.
The Wedding Squanchers - S2-E10
Rick: Listen, I'm not the nicest guy in the universe. Because I'm the smartest, and being nice is something stupid people do to hedge their bets.
Answer: C-137 is the dimension they came from since the pilot. After C-137 is Chronenberg'd, Rick and Morty travel to a replacement dimension that we haven't found out the designation of (although they may have moved dimensions again). The "original" Jerry, Beth, and Summer are still on C-137 though.
Bishop73