Gally-wagger
A person who thinks they’re a legend, but they just got a D on their math test.
He said he’s the next Einstein. I said he’s a gally-wagger. He drew a picture of a sad Einstein.
She told me she’s the queen of the universe. I called her a gally-wagger. She said I was the king of the dumb people.
That kid failed spelling but thinks he’s a genius. He’s a gally-wagger with a side of lies.