lag spike
When your computer takes its time to think, then it goes full speed like it just got a new brain. It's like your PC is doing a weird dance with lag.
My computer lagged for 5 minutes and then everything was super fast. It felt like it got a new brain.
I was playing World of Warcraft and my computer had a lag spike. It was like it was on a break.
My computer lagged so much, I thought it was going to die. Then it went full speed.