Top Definition
A man, usually with some form of a undiagnosed mental illness, who knows everything there is to know.
Oh my goodness! Did you hear George telling about how to get rich? He is acting like such a sylvanus.
by jessie_freakgirl February 08, 2009
5 Words related to Sylvanus
A sexy ass nigga who likes to mess around with a lot of bitches.
Damn I wish I had a sylvanus
by Mark Royce November 14, 2015

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.