1) A really bad customer, usually with "I'm always right" attitude.
2) A sucker.
That suctomer of yours called back. She still wants free shipping to Hong Cong, and she's being anal retentive about it.

I just sold him the car at 200% over market rate. Heh, suctomers.
by P. V. September 5, 2007
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a customer who really, really sucks.

a customer who is Not Right.

someone who tries to scam an Etsy Seller.
"I had a suctomer who tried to claim that I didn't send my product, even when I had a delivery confirmation, time and date stamp from the USPS, and the package was Insured. They were just trying to get something for free. Effin' suctomer"
by bcj May 30, 2012
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The most pernicious and unfortunately, common, kind of customer, usually found frequenting retail environments for no other reason but to harass young and inexperienced, teen-aged employees. Sometimes found online badgering telemarketers for long periods, but in this case, their role is mutual as lower life forms.
Oh my God, dude, here comes that suctomer from last week who said I messed up his order but it was exactly what he ordered. He's not a customer; he's a suctomer!
by Plasticity March 25, 2019
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