A Total McKenzie
"A Total McKenzie" or simply an ATM, is referring to a girl who is convinced she is social-media famous. This type of girl will never stop talking about her 500 followers. She feels the need to rub it in your face as well. It gives her pride and validation in telling other people.
Oh my gosh. That girl is a total McKenzie. She's so annoying.
Total McKenzie
Someone who carries out an action which is moraly dubious.
Man that Robx is a fuckball. the chode loves to Fly The Space Ship Through The Rings Of Uranus then lick the Kit-Kat. What a mogging Total McKenzie