Use 'like crazy/mad' when describing actions done with extreme effort or passion.

High Intensity

It can express frustration or enthusiasm depending on context.

Emotional Expression

Most suitable for casual settings, not formal speeches or writing.

Implies an action needs to be done quickly and without delay.

Often used with verbs involving physical activity or motion.

It's a figurative expression, not meaning one acts literally mad.

Suggests a scene is lively bustling with action or noise.

Shows enthusiasm or enjoyment in a happening event.

Can be used to exaggerate for storytelling or comedic effect.