From the southern vernacular of American English (often the African American vernacular in particular). When people from the southern regions of the US who speak slang say the phrase, “know what I’m talking about,” it sounds like “nomtombat.”
“I ain’t got time for my homework tonight, I’m about to hit the sheets instead... nomtombat? “
A small piece of information. Derived from the word ken, used often in the scottish language and is synonymous with knowledge.
Person 1: "Hey I don't get this shit. How do you solve this problem?"
Person 2: "I got that one. Give me some kenlets on this assignment and I'll help you w/ that one."