bitch giggles Share definition Flag Verb. The act of giggling to oneself; often experienced when speaking to a girl either by IM or phone. You find yourself laughing femininely to yourself(or out loud) Gui: "Wow, you're hot" Maria: "Wow, you are as well" Gui: ::bitch giggles:: bitch giggles by GTejeda December 11, 2006 Get the bitch giggles mug.