nadascap
A dirty mix of 'nah' and 'that’s cap' used to roast someone for lying like a bad actor.
'You said you made a million dollars? Nah, that’s cap. You’re broke, buddy.'
'He said he knew the president. Nah, that’s cap. He just saw a picture on Instagram.'
'She said she ran a marathon. Nah, that’s cap. She walked it and took a nap halfway.'