Memes or image macros. When the gerbil drops into the anal cavity, remove the wet paper-towel roll, leaving the string you've tied to the gerbil's tail hanging out of your ass. This statement is not controversial for the reasons one would hope: Implications of a Contemporary Legend. We're only human, like you.
Unlike others, though, Cecil does pull out at least some descriptive if not verified threads:
Some straight people have a peculiar need to believe certain sex acts--usually disgusting ones--are practiced only by gay men, despite evidence to the contrary. We were having a little office debate about "gerbiling. Stranger Tickets Buy tickets to events around Seattle. Nudge the gerbil into the outside end of the paper towel roll. The mayor's latest proposal would cut benefits to municipal employees to fund development projects. We were having a little office debate about "gerbiling.