Remember the time when you have worked an 80 hour week and your girlfriend wants to go watch "What to Expect When You're Expecting"? You can barely open your eyes, you look drugged like a coke fiend, and then all of a sudden she cracks the shits at you and flies off in a huff to her mother. Chadmin.
And do you recall that moment when your sports team lost in the grand final and you mope around the house for a few hours, and even she tries to console you? And the next morning, she's giving you the cold shoulder? That is chadmin in its purest form.
Russell: "Sorry dude, I'm in the dogbox lately for who knows what reason. Think it might have been 'cos I didn't clean the toilet."
Russell: "Yeah, chadmin. Bloody chadmin. Gets me every time!"