Shenanifuckery is a level of outright unbelievably fucked up or distasteful behavior; when some person or event transcends normal fuckery behavior and goes for the Gold.
Della tried to say I raped her and gave her an STD, thats some shenanifuckery right there. or You wouldn't believe the shenanifuckery I had to go through at the DMV today...I stood in line for 3hrs to get an ID card.