#1 When you nonce multiple girls that are normally below England's age of consent
#2 When you commit credit card fraud and/or theft despite living in a super rich area
#3 When you may or may not have fucked your own cousin whilst being fully aware that they are your cousin and vice versa.
#1 Oh Crap I'm McGilling this girl 4 years younger than me. I hope the police don't find out.
#2 I think it was a good idea to McGill this random Iphone i found on the floor and sell it for as much as i can
#3 Man, I just McGilled her... It was great!!
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."