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
Get the Silly and Billymug. by Bobmski23 October 20, 2009
Get the silly bo billymug. by mitchD December 4, 2003
Get the silly bo billymug. Although strictly speaking a derogatory term as defined above, it can (and often is) also used affectionately.
A: Where is Billy Littleknife?
B: I dunno. Stop asking such questions and come here.. You Silly Billy, you !
snogging ensues....
B: I dunno. Stop asking such questions and come here.. You Silly Billy, you !
snogging ensues....
by FireWalls2000 May 13, 2010
Get the Silly Billymug. 
An proclaimation of victory used by someone at least 25 years older than their opponent. It is such a bad insult, that only the older (or should I say wiser? Maybe not...) can use it and not look stupid. It basically means that their opponent is too immature to be treated to a real insult.
by Gumba Gumba March 5, 2004
Get the silly billymug. A silly Billy is someone who is either very silly or is acting like a willy, can/or be combined with words such as vanilly, lil etc. to further validate if someone is being a silly willy vanilly Billy
by Dekorich September 13, 2021
Get the Silly Billymug.