Friends, a new word!
Fussticular /fus.tic.u.lar/ adj. [N. Amer]
1: A mood comprising both "fussy" and "particular" elements; ie, wanting only very particular things, and being very fussy if they are not promptly delivered. "Elliot was a little fusticular about his dinner and would only eat sweet potato-coated cheerios."
2: A bad mood, evoking the word "funicular" and its conotations of escalation. "If we're not careful, Elliot is going to ride this fusticular mood all the way to the top."