She’s a dash mad.

Accused serial dine-and-dash diva Pei Chung, 34, was ordered to undergo a psych evaluation Wednesday by a Brooklyn judge after her attorney claimed she can’t understand the charges against her.

Chung’s attorney Henry Dechalus requested the mental health evaluation — known as a “730 exam” — during a hearing over the designer dud-flaunting wannabe influencer’s aversion to forking over cash for her gourmet meals.

Dechalus contended that Chung — who wasn’t in court Wednesday after waiving her right to appear — doesn’t understand the failure-to-pay charges leveled against her.

“At this time, I will be asking for a 730 exam,” Dechalus said.

“I spoke to my client. She doesn’t understand the proceedings. She has some difficulty communicating with counsel. She doesn’t nece

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