The multi-jump glitch is a jumping technique that allows users to jump higher. When gears are within a player's backpack , the user can press the number key associated with that gear while holding the space bar in order to jump multiple times in a row. It can also be done with the use of user-created gears and motorcycle gears. This glitch can sometimes benefit the users by the use of double jumping.
The multi-jump glitch can also occur when the player jumps onto a small unanchored object, causing the player to launch into the air. Wearing multiple hats and dropping them with "=" can also trigger this glitch. This glitch has been fixed in early 2015.
The multi jump glitch is most used in games that you're jailed or escape quickly. For example, Jailbreak.