I still don't get it.
I'm so autistic.
There are two possible jokes. He's stated that once he buys Twitter he plans to fire 75% of their employees. He just walked into Twitter HQ for the first time - let that sink in. It's an idiom referring to the implications of an action, namely that he owns Twitter now and can follow through on his plans to fire most of the SJW employees.
The other possible joke is that he brought everything, including the kitchen sink. It's an idiom used when traveling to describe someone who packed so thoroughly that they're prepared to stay for a long time.
So maybe he's the autistic one. Both jokes stink.
He has a bunch of kids and has plenty of experience with dad jokes
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