Where a man goes when a woman he is dating never hears from him again. The bizarre yet common occurence when a man drops out of the woman he is dating's life without explanation.
Maggie asked Scarlett, "How's Ed?" Scarlett replied, "Girl, I think he's gone Milk Carton Man. He hasn't called. No text. No email. I haven't seen him. Nothing." Maggie commented, "Yeah,well, we'll be seeing him on the back of the milk carton for sure."
by GiddyUpGirlFL January 18, 2009
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A threat of bodily harm, or great injury.

To make someone "disappear"
1) If that asshole doesn't leave me alone he will "end up on a milk carton"

2) til this whole mess blows over, I am going to end up on a milk carton
by soapmaker June 10, 2009
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An uncultured person, particularly a homeschooler, doesn’t have all the hot dogs in their milk carton.
“_____ doesn’t have all the hot dogs in their milk carton.”

“Well, you wouldn’t expect Kate to know - she doesn’t have all the hotdogs in her milk carton…”
by Marshal Watson March 31, 2023
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Subject of a missing person advertisement on the side of a milk carton, implying "disappeared without a trace".
Teamster Jimmy Hoffa was milk cartoned by the mob, and his body has never been found.
by HiTechHiTouch July 15, 2013
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To go missing. To disappear. When you have not seen someone in a long time. In reference to the 'Missing' photos that used to be placed on the back of milk cartons.
'I feel like I haven't seen Mena Suvari in forever... She's gone full Milk Carton'
by O-U-812 September 11, 2019
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