slasca
noun
A task, activity, or goal that is ostensibly put off until more time is available, but in actuality will probably never occur.
Janine had often toyed with the idea of learning to knit and making herself a scarf, but had never been interested enough to actually make time for it. It had become a slasca that she told herself she’d get around to in some vague future where she wasn’t working so hard at her job.