by Sexiness April 12, 2005
(noun) a goofy man (not nessicarily named Billy) who acts gay ormetrosexual. Sometimes said as an insult but usually just as teasing.
"You're a Silly Billy With No Willy!"
by Santas Sexy Helper July 31, 2004
by EndMySuffering-1 January 10, 2018
Get the silly-billy-nilly mug.
Seriously the maddest insult one can unleash on another, commonly used among children of two years of age.
by fr1ck February 26, 2018
Two crazy assed weirdos who just love it! Its a word to describe to best mates who ove to have fun :D
by Robyn-ashley mayte March 11, 2008
by Bobmski23 October 21, 2009