Narcissistic Supply:

Narcissistic supply is the attention, admiration, recognition, or validation that a narcissist receives from others — including negative reactions like conflict or drama — which they need/use to bolster their fragile ego. Narcissists often view relationships as a means to an end, with the primary goal of obtaining narcissistic supply. They may manipulate, exploit, or discard individuals who no longer provide the desired level of narcissistic supply. It can be destructive to relationships and lead to emotional exhaustion, low self-esteem, and mental harm for those consistently providing the supply. Understanding the phenomenon of narcissistic supply helps others recognize, neutralize, and possibly break free from toxic relationships — or at least explain a narcissist’s emotional dependence on these external sources and why they may experience feelings of emptiness, inadequacy, and narcissistic rage. Examples of supply:

• Constant praise and admiration: Seeking compliments, bragging, being the center of attention
• Social media validation: Posting frequently, seeking likes, followers, and increased interactions. 
• Manipulating others: Creating drama/conflict to get strong reactions and reinforce their power. 
• Exploiting others for their gain: Especially vulnerable individuals, for attention, support, resources