1 definition by Jim McFunk

gerbil rocket

1. fuck someone in the ass
2. insert a toilet paper tube into their loose asshole
3. insert gerbil into tube
4. light a match at the end of the tube to force gerbil farther up inside asshole
5. remove tube and enjoy the wriggling of a small to medium sized animal inside your anus
6.good luck getting it out

Last night after a felching session, Bill gave Tom a gerbil rocket

by Jim McFunk April 29, 2006