From Longman Dictionary of Contemporary Englishindulgein‧dulge /ɪnˈdʌldʒ/ ●○○ verb 1 [intransitive, transitive]ENJOY/LIKE DOING somethingDO to let yourself do or have something that you enjoy, especially something that is considered bad for youindulge in Most of us were too busy to indulge in heavy lunchtime drinking. Eva had never been one to indulge in self-pity.indulge yourself Even if you’re dieting, you can indulge yourself (=eat what you want) once in a while. Ray has enough money to indulge his taste for expensive wines.2 [transitive]KIND to let someone have or do whatever they want, even if it is bad for them His mother spoiled him, indulging his every whim.3 [intransitive] to take part in an activity, especially an illegal oneindulge in Women do not indulge in crime to the same extent as men.→ See Verb table
Examples from the Corpus
indulge• Katie's a spoiled brat because her parents indulge her too much.indulge in• I was downtown, so I decided to indulge in a little shopping.• A funeral is not an appropriate time to indulge in gossip.• Most people indulge in harmless fantasies to relieve the boredom of their lives.Origin indulge (1600-1700) Latin indulgere 