A shit that hurts coming out. Grumpy dumps most often occur after eating spicy food, or can simply happen if you are just taking girthy shit.
Man, I just took a giant grumpy dump! I think my butthole is bleeding!
John took a grumpy dump upstairs! I think we are gonna need to call a plumber.
John took a grumpy dump upstairs! I think we are gonna need to call a plumber.
by Gringo no Brasil November 17, 2014

The act of shitting-hovering ever so slightly over the rim of the toilet and facing the opposite direction(towards the flusher) In an attempt to create obtuse skid marks.
by Ale07 June 1, 2012

by The Pumpkin King September 24, 2006

by Jesu Christu May 14, 2006

To take a dump at night
by Suspence July 19, 2009

Guy 1: "Hey man, what happened to that bitch Holly you was seein?"
Guy2: "Oh her...she was just a scrump and dump."
Guy2: "Oh her...she was just a scrump and dump."
by RoyGBiv79 October 31, 2009

by Hecto September 7, 2007
