2 definitions by Umbilical

(noun): A girl or guy friend who patiently teaches you everything from how to make out to properly pleasuring future sexual partners of the same genders so that you don't embarrass yourself when you score a hot date by being inexperienced.
Steve was so lucky to have Jessica as training wheels, otherwise this new girl would be way out of his league sexually.
by Umbilical May 22, 2014
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One part of a pair that is so close that it seems as though sometimes they are attached by an umbilical cord

Umbies - the pair of people who are practically biologically attached
"God Margaret and Max are always together, they need to cut the fucking umbilical cord"
"No its ok, they're totes umbies and we've all learned to accept it."

"Wow, I'm surprised to see you without your umbie"
by Umbilical August 12, 2011
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