house shitting 

When touring a house for sale with a real estate agent while the owners are out, the prospective buyer takes a dump in the toilet and doesn't flush, leaving a surprise for when the owners come back.

I didn't like the real estate agent or the property, so I did a house shitting while the agent was showing my wife the guest room.

house shitting by Spigoon December 19, 2008

House-Sitting 

The act of watching a person's house, whether a neighbor, friend, relative, etc. Activities include eating all their food, watching their TV, and playing with their pets. Can be very fun or just a huge drag.

Person 1: Dude, house-sitting is so lame. Let's throw a kick ass party!
Person 2: Fuck yeah!!

House-Sitting by snarky56 June 22, 2009

Horseshitting 

It's like saying "are you kidding me" or "are you shitting me", but stronger than those two. Like bullshitting, but with another animal.

Guy: "Barack Obama died 10 minutes ago in an accident."
Other guy: "What? You gotta be horseshitting me."

Horseshitting by Andresthejeff November 26, 2013