Top Definition
When someone thinks too highly of themself.
“Betty I know you think I’m hot.”
“Jesus Chad, get you have dick in brain syndrome.”
by zzawesomeness June 05, 2018

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A large cock or an overconfident male.
Wow, he's such an Irtiza! He thinks he's the best at everything..
by Sjag687 June 19, 2017

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