A person who lacks the ability to continue a story after being cut off in the middle of it. Generally a dankwanker will become unnecessarily angry and lash out at those close to him, so that he will then be left alone to relieve himself indignantly.
"Hey man, did your buddy just cuss you out and leave?"
"Oh, him? Yeah he's just being a little dankwanker today, he'll get over it."
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."