(US, slang, humorous) psychological.
1999 February 8, "Emily Spears" (username), "Is it important to gradually shut the lights off?", in [http://groups.google.com/group/rec.aquaria.freshwater.misc/browse_thread/thread/2d688f0124cc85d3/c6ebb581adababab?hl=en&ie=UTF-8&oe=utf-…
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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