The phrase usually expresses criticism, not a compliment, suggesting someone has an inflated ego. After the meeting, John was really getting above himself, disregarding everyone else's input.
Pro Tip 2/3
Colloquial Caution
Use this phrase in casual conversation, but avoid it in formal or professional settings. You might think you're just joking, but don't tell Lisa she's getting above herself.
Pro Tip 3/3
Cultural Sensitivity
Some cultures may consider direct accusations rude; indirect language might be preferred. In some workplaces, telling someone they're acting above themselves could be seen as confrontational.