To 'Jam Doughnut' is to finger a girl while she is on her period and then sucking and licking their fingers afterwards.
by FatalJunkie February 28, 2011

To pull out while having sex with a girl and blow your boys all over her anus. Followed by getting on your knees and sucking all of your boys back off her ass.
by Anonymous November 7, 2003

by scotty April 7, 2004

when u beat off perfously then jiz around the rim of a girls asshole, and smear it around with your dick.
by dylanandmatt March 28, 2009

by thingsthatgoboom October 25, 2010

a fake person, a wannabe
shiran: omg heidi montag is so fake! did you hear how much plastic surgery she got? jenie: she is such a jelly doughnut...
by shenie October 19, 2010

When fucking a girl in the ass for a long time with a larger than normal object or body part, their asshole can become extremely loose and if they push with their bowels hard, their colon can protrude out of their asshole and it will resemble a large pinkish-red, jelly doughnut.
Karen took it so hard up the ass, that she pushed her colon out her cinnamon ring and it made a jelly doughnut.
by Bucwild9 October 26, 2008
