spenca moment means: An “spenca minute” can be described as a time period that triggers a response from people directly or indirectly affected by it. These reactions can be incredulous, insatiable anger, shock or utter disbelief. A “spenca Moment” must be followed up by either “Bruh,” “Are You Serious,” or “Wtf.” Typically, Spencer commits a “spenca minute”, but others can do the same. However, the severity of the situation will determine the reaction. (in Community Dictionary, added by Makena Randall)