In American Mech E, the 4th through 6th derivatives of position are snap, crackle, and pop.

Since graduating over 30 years ago, I’ve only ever used or cited crackle and pop on internet message boards or as trivia, never in actual engineering.

IME crackle and pop are used in space raft design to minimize structural stresses and fuel consumption during orbital maneuvers, precision CNC manufacturing to reduce vibration and improve tolerances, robots like pick and places to minimize wear and tear, semiconductor fabs for their precision positioning systems, and cam design for engines.