by Jeremy Joyner September 28, 2005

When one puts their face in another person's buttocks and moves their face back and forth while making a motor boat sound with their mouth by blowing air and making their lips flap. similar to motorboating but for the rear end.
"Last night i took it to the next level with liz, i rooster tailed her and she went wild"
"take that shot and lets go out rooster tailin!"
"take that shot and lets go out rooster tailin!"
by Dr. Frankenschmingle May 20, 2009

Dang Monica, I see you Whale Tailin' tonight!
Girl I know you love the ocean, 'cause you Whale Tailin like crazy.
Girl I know you love the ocean, 'cause you Whale Tailin like crazy.
by PolaroidBlues June 01, 2014

by miranda k October 22, 2006

Like prarie doggin, it is when a turd is peeking out of your bunghole, like a turtle's tail coming out of its shell.
by JonnyCakes August 19, 2007

by serpico May 28, 2001

by Joshsquach May 31, 2018
