To betray someone. In Ancient Rome, Julius Caesar was betrayed and stabbed multiple times over by his friends on account of how many illegal actions he performed while ruling over Rome.
Bartender: Why so gloomy?

Truck Driver: The day started out so well. Me and my buddies... we were all excited and grooving and dancing in the company parking lot because it was Friday. I suggested we come here... Now, it's almost closing time and I'm thoroughly convinced they wanted to Pull a Julius Caesar on me.
by Stupidly Sophisticated March 15, 2020
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