knowledge that obvious to anyone with half a brain, often aggravating due to its repetition.
girlfriend *interrupting/just making a statement* : "drinking and getting behind the wheel is pretty stupid"
boyfriend *aggravated* "well, yeah... that's no-shit-knowledge..."
An expression when someone is so incredibly smart, intelligent, intellectual, and savvy, they simply begin shitting knowledge (on others) literally, figuratively, and metaphorically.
I am going to be shitting knowledge all day today.
Stop shitting knowledge on me. I feel so inadequate and dumb.
Help me get on your level of shitting knowledge, please.