dopamine

This term carries a strong association with the reward system of the brain, often evoking the feeling of a sudden rush or a spike of excitement. It is frequently used in medical contexts to discuss Parkinson's disease or addiction, but has migrated into casual conversation to describe the psychological "hit" one gets from social media likes or small wins.

In modern slang, it is often used as a shorthand for any activity that provides instant gratification. When people speak of a dopamine hit, they are referring to the fleeting, chemical pleasure of a craving being satisfied rather than a deep, lasting sense of contentment or peace.