adj. Sorta cuckoo-bananas-y.
Real citation: “I'm not agreeing or disagreeing with the website (seemed semi-nutballish), but I think that there are healthy doses of truth mixed in with the alarmism, and there is probably a substantial risk that, overall, the state system (the courts + group institutions + foster homes) is also a detriment to kids' wellbeings.”
(May 11, 2007, http://message.snopes.com/showthread.php?t=8594&page=2)
Made-up citation: "I am loving Denis Leary's semi-nutballish firefighter character on Rescue Me. He's one reason some call FX the Nutcase Channel."