verb. to disappear from, decline, or cancel a speaking engagement for the flimsiest of reasons; to just suddenly disappear; to turn coward at the first hint of being asked serious questions in front of an audience.
from the name of a former senator of the Philippines, who, on several occasions, failed to appear as scheduled, citing reasons even a second grader would find laughable.
Dude, we're scheduled to defend our research paper on Tuesday. Do a bongbong on us and we'll make sure you never graduate.