Full O'Callaghan

Fucking over your shift trade by putting him on the medic; putting yourself on the pump when you've got a trade coming in for you.

"I didn't want to be tired for my vacation so I asked my trade to go on the medic for me....had to go Full O'Callaghan"; "Fuckin' guy went full O'Callaghan on me and put me on the medic"

Full O'Callaghan

When you fuck over your shift trades by making them go on the medic; Treating your trades like shit; Ensuring you can never find shift trades again by putting yourself first.

"I didn't want to be tired for my vacation so I put made him do my medic night....had to go Full O'Callaghan on him"
"Fuckin' guy went Full O'Callaghan on me and made me ride the medic for him, I'll make sure the boys don't take shifts for him ever again."

Schnickel

To make something somebody else's problem; especially regarding money.

To bamboozle someone.
To weazel out of responsibility.

I got totally Schnickeled yesterday. Dude "forgot" his wallet when we went for coffees again!

The Schnickeler got out Schnickeled with the great BBQ debacle of 2019