The Collaborative International Dictionary of English v.0.48:
jinks \jinks\ n. noisy and mischievous merrymaking. Syn: high jinks, hijinks. [WordNet 1.5] JinneeWordNet (r) 3.0 (2006):
jinks n 1: noisy and mischievous merrymaking [syn: jinks, high jinks, hijinks, high jinx]