Two crazy assed weirdos who just love it! Its a word to describe to best mates who ove to have fun :D
Wats ur names?

''This is silly and billy''

san na sa
by Robyn-ashley mayte March 11, 2008
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Acting loud, drunk and being idiotic
Bo Billy is a Silly Bo Billy, that fuck.
by Bobmski23 October 21, 2009
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Someone who is silly and semi hilarous.
Dan smith is sort of a silly bo billy.
by mitchD December 4, 2003
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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....
by FireWalls2000 May 14, 2010
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a mountain goat with down syndorome
by Nick April 30, 2003
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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.
Silly Billy, don't fuck wit dees old ass niggaz.
by Gumba Gumba March 5, 2004
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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
Omg Chris you are such a silly Billy. You are the absolute definition of a silly Billy
by Dekorich September 13, 2021
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