Verb
(intransitive) To take a premeal (preprandial) bolus of insulin shortly before a meal (usually just a few minutes before).
Should I prebolus or not before starchy dinners?
(transitive) To administer (one's insulin dose) in this way.
I'm going to prebolus my shot today.
(transitive) To preempt bad effects of (one's meals) in this way.
I'm going to prebolus the hell out of that pizza.