That one guy who acts like there your friend but flips out when you dont talk to them. They tipically flip out when this occurs. In that scenario it is acceptable to laugh at their dumb ass.
"Oh look guys it's Tommy the Tool Train."
"Hanging out at cedar point with the friends and ran into Tommy the Tool Train."
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."