nahcman
You yell this when your friend is lying about being bad at something but they’re actually super good at it.
You: 'I got a D on the science test.' Friend: 'Nahcman! You got an A!'
You: 'I think I failed the history test.' Friend: 'Nahcman. You aced it.'
You: 'I got a 50.' Friend: 'Nahcman. You got a 95.'