1. A person who is adept at busting lies and cracking bullshit. They work on the same principle as nutcrackers, but instead of cracking nuts or genitalia, they are used by others as tools to bite open hardened lumps of feces that may spout out from a person's mouth or anus.

2. A retarded person
1. Guy: What were you saying about Brown's cows lighting shit on your doorstep?
Girl: It gives me quite the shits
Guy: Your lies fool no one, not even me
Girl: Good for you shitcracker

2. Guy: See that guy over there?
Guy 2: Yeah, what a shitcracker
Guy: And see his girlfriend?
Guy 2: Yeah, shitcracker and cheese.
Guy: Let's hope he's not lactose intolerant.
by niiien March 13, 2010
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