When you curl up into a fetal position during intercourse, and prevent your partner from reaching your genitals.
"Yo man, last night I pulled the old Fetus Lock on my girlfriend, and now she thinks I need to see a counsellor "
by BellBoy August 20, 2014
Get the Fetus Lock mug.When someone (usually of the tall variety) stands up straight and their knees look like a fetus face. Also knows as 'Old Man Face Knees'.
by Mungo260 January 8, 2016
Get the Fetus Knees mug.Related Words
When you slurp up a fetus' stem cells in order to aquire super human like strength similar to the hulk.
by The lover doctor April 7, 2016
Get the fetus juicing mug.It's your baby-daddy, but it's not a proper baby yet. It's a cluster of cells that may or may not have fingernails yet.
by Iregretitalreadybutit'sdone January 6, 2019
Get the fetus-daddy mug.A friend that you’ve known since the infancy or a childhood friend that you’ve known your entire life, essentially since the time you we’re both fetuses, because your mom and their mom and/or parents have been friends since before your birth and you became friends with your parent’s friend’s child by default.
by Fetusfriends101 June 13, 2019
Get the Fetus friend mug.by Dannybatt April 3, 2019
Get the fetus completus mug.Two fun fetuses who's parents had sex around the same time and now share the same birthday...plus they're best friends!
by Oljake October 10, 2019
Get the Fetus Fellas mug.