The sound a fart makes when you've been holding it too long and it reverses back up the colon and into the gut. Eventually it may emerge as a 'bistulum' (ass scented beltch).
by RAFFO November 3, 2003
by Awesomes007 September 14, 2006
by johnny woo June 1, 2007
The sound associated with intestinal gas and raw oatmeal are expelled from the anus following an unsuccessful feeding session with an anal feeding tube.
"After the disease progressed too far, they could not even feed poor Stanley with the oatmeal, for when they pulled out the hose (from his anus), it (the oatmeal) just came back out... furp...furp...furp."
by Winky November 23, 2003
when a person swallows air to burp while they are taking a smelly dump, so when they burp later on it smells like a fart.
by Pur9Le ParTy June 29, 2010
by Strong Island Kid February 25, 2010
A Furp Derpler is one whom takes great pleasure in crop dusting and waiting for the victim to be overcome
by Millsbilly Bobert November 14, 2020