A Reverse Squiggle Jump is a technique used mainly by Luigi in Super Mario Bros. 2 to achieve higher/longer jump ratios while confined to a small area. You must run back and fourth one step each way and propel Luigi upward while still downpressing the run button.
Synonyms: Reverse Flak Jump, Flak Jump, Squiggle Jump, Wiggle Jump, Squiggle-Flak Jump
2. Oh man! That RSJ was off da hook!!!