A dirty ralph occurs when a girl is puking and you stick a dick or a dildo in her pussy, preferably in the doggy style position.
I was holding my girls hair back and the mood struck me, so i gave her a dirty ralph. The contractions feel so incredible, it almost makes up for having to smell vomit.
by markymark88 January 19, 2007
The Dirty Ralphs are a group of awesome guys in Beta Theta Pi that put the social and "fratty" aspects of a fraternity in Beta. The Dirty Ralphs are the most social group of guys in the fraternity and often regarded as the most fun.
by The Dirty Ralphs April 10, 2013
While receiving oral sex, a male partner stimulates the other partner's uvula resulting in the partner giving oral sex to vomit on the male partner's erect penis. The male partner then inserts his soiled penis into the other partner's rectum using the vomit as anal lubrication.
by Julie McChicken June 29, 2009