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The act of assuming a fetus like position in which the body is curled with knees into chest; this is commonly due to a high intake of THC; a symptom of the itis
Man, Marcus got too high again, looks like he's fetusing.
by project420 May 13, 2009
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Aug 11 Word of the Day
You can tell by the way she walks, she got that WAP.

You can look at her face and tell she ain't got that WAP.
by Black Don August 06, 2020
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2
when a person is randomly in a corner or crouched in a fetus-like postition rocking back and forth and wimpering.
i looked over and she was fetusing.
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3
When two people wrap themselves in a blanket to pretend they are twins in a womb. Often done as a street performance by homeless derelicts.
"OMG Tiffany, Where is Michelle?"

"She's in the back room fetusing with Bobby, what a slut!"
by meow13242 September 25, 2016
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