A silly bitch is someone who thinks they are funny, knows they are funny, and everyone else knows they are funny.
Dane cook is a silly bitch
by Brad the Silly Bitch September 02, 2006
Someone whose weapons cannot harm the Juggernaut.
"Silly bitch, yo weapons cannot harm me, don't you know who the fuck i am? I'M THE JUGGERNAUT!"
by Intelligent sir August 07, 2009
Someone who is both silly and a bitch
Steph is a Silly Bitch
by Bonichetti April 02, 2008