Lactard (lactose + retard)

A “lactard” (lactose + retard) is someone who has a sensitivity to foods that contain lactose (such as milk), often requiring a lactose-free diet. “Lactard” is a slang term for someone who is “lactose intolerant.” “Lactard” has been cited in print since at least 2003.
 
The term “lactard” is usually not derogatory, but some prefer to not use it because “retard” is usually considered to be derogatory.
 
A similar term to “lactard” is “glutard” (gluten + retard).
 
   
Wikipedia: Lactose intolerance
Lactose intolerance, also called lactase deficiency and hypolactasia, is the inability to digest lactose, a sugar found in milk and to a lesser extent milk-derived dairy products. It is not a disorder as such, but a genetically-determined characteristic.
 
Lactose intolerant individuals have insufficient levels of lactase, an enzyme that catalyzes hydrolysis of lactose into glucose and galactose, in their digestive system. In most cases this causes symptoms which may include abdominal bloating and cramps, flatulence, diarrhea, nausea, borborygmi (rumbling stomach), or vomiting after consuming significant amounts of lactose. Some studies have produced evidence that milk consumption by lactose intolerant individuals may be a significant cause of inflammatory bowel disease.
 
Wiktionary: lactard
Etymology
lactose +‎ -tard.
Noun
lactard (plural lactards)
1. (rare slang) A lactose intolerant person.
   
Google Groups: rec.music.phish
Milk (nPc)
LunarCycle1234
3/20/03
This has nothing to do with the original post, but I saw the funniest bumper sticker yesterday.  “Milk sucks.  Got beer?”
Jamie, who feels the same way because I’m a lactard.
 
Urban Dictionary
lactard
a person who is lactose intolerant
“Babu do you want to get some ice cream?” “Sorry Jasminda, I cant eat ice cream - Im a lactard.”
by Babu May 19, 2003
   
The Amateur Gourmet
What’s In Your Fridge?
JUNE 9, 2004 | BY ADAM ROBERTS
(...)
Beginning at the bottom shelf and reading from left-to-right (my fridge is not a Hebrew text), you will see Lauren’s orange juice and Lauren’s Lactaid milk. I lied when I said the only normal things are Lauren’s. Lactaid milk is so not normal! Lauren is a lactard.
 
ehealth forum
lactard
replied December 9th, 2004
I Am Lactose Intolerant Too!
 
Urban Dictionary
lactard
A derogatory term for one who is lactose intolerant combining the word retard with ‘lactose’.
Person 1: “Uh, why is that girl drinking soymilk?”
Person 2: “Because she’s a LACTARD”.
Person 1: “HA HA!”
by lila_pause September 03, 2006
   
American Dialect Society
January 5, 2007
“Plutoed” Voted 2006 Word of the Year by American Dialect Society
(...)
Most Creative
WINNER lactard: a person who is lactose-intolerant
 
Google Books
Casserole Crazy:
Hot Stuff for Your Oven!
By Emily Farris
New York, NY: A Home Book (Penguin Group)
2008
Pg. ?:
Lactard’s Surprise.
FILE UNDER : Not So Bad for You, Lactose-Free
My friend Mike is lactose intolerant, or “lactarded” as he likes to call it.
 
Google Books
Broke-Ass Stuart’s Guide to Living Cheaply in New York
By Broke-Ass Stuart
New York, NY: Falls Media
2008
Pg. 110:
And if you’re a vegan or cheese gives you the shits, you can buy soy cheese for only $5.59 a pound. Chalk one up for the lactards!