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2.
A sexual position consisting of a woman curled up like a fetus and a man lying straight having sex with her belly button.

The fetal position is intended for use with women who are overweight or have abnormally large belly buttons.
"How was last night?"

"Lame. Fetal position isn't all it's cracked up to be."
by Jafus000xxx1 June 13, 2008
 
1.
the act of curling yourself in a ball and crying like a little girl in hopes that your attacker will just go away.
lol that kid just threw himself in the fetal position and shit his pants.
by mullet man carrie January 15, 2011