A phrase used to signify that someone is taking charge and getting shitdone! The term is well known for being used in the movie Step Brothers!
James Bond: "FunDawn, did you put laughing gas in the HVAC system?"
FunDawn: "Heck yeah, I am snappin necks and cashin checks, kitties!"
or
Boss: We are snappin necks and cashin checks today kitties!
Crew: Shit yeah Boss, killin it today!
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. Penguin Books,1992. p. 38)