Green’s Dictionary of Slang

a trifle, a fanciful thing.

1613		H. King Halfe-pennyworth of Wit n.p.: I see my inferiours in the gifts of learning, wisdome, and understanding, torment the Print daily with lighter trifles and Iiggalorums then my russet Hermit is [N].
1944		P. Kendall Dict. Service Sl. n.p.: Jiggalorum [...] articles whose technical names escape you for the moment.