1 definition by Hnnng Check 'Em

The state of being incredibly sincere and serious at simultaneous intervals within the Space-Time Continuum.
Mom: "Son, we need to talk about your cat's inane behavior in relationship to the proximity of the toaster."

You: "But mom, the cat understand that data does not weight."

Dad: "The Red Army could benefit from such a young, youthful mind in it's ranks!"

Cat: "Sinceriously, I wonder what the fuck is wrong with you people."
by Hnnng Check 'Em June 12, 2011
Get the sinceriously mug.