It is a diminutive of jota. The jota is the tenth letter of the Spanish alphabet. The jota is the name of a song and a dance from various regions of Spain: the jota of Aragon, Castilla etc. Jotica says in Aragon, when the Aragonese refer in a loving way, singing or dancing the jota.
* Only one "like" per meaning and day, the more "likes" the meaning will appear higher in the list