When one is working with any computer word-processing program, and it begins to become non-responsive and/or performs strange, unexplained functions, often resulting in the computer freezing and/or loss of the entire document.
The term is derived from the skateboarding vernacular term "speed wobbles," which is when a skateboard begins to tightly swerve uncontrollably from left to right due to excessive speed.

the thing that you don’t have when you’re phones percentage is over 20