Like fury
Definition 1 of 1
Pro Tip 1/3Intensity emphasis
Used to emphasize the intensity or degree of an action or feeling. 
He argued like fury to defend his point.
Pro Tip 2/3Casual expression
More common in casual or informal speech rather than formal writing. 
She ran like fury when it started to rain.
Pro Tip 3/3Hyperbolic nature
Often used hyperbolically to create a dramatic effect, not always literal. 
He was typing like fury, even though it was just a casual email.