The letter's "C" (Charlie) and "B" (Bravo) used as shorthand to describe a certain breed of woman known as a cunty bitch
A Charlie Bravo can often be
recognized by the
configuration of her lips where they are pursed in a manner that looks like she just sucked a lemon and by a unique quick "tsk" sound emitted from her lemon-sucking lips whenever she doesn't approve of something followed by the catch-all phrase of either "whatever" or "
I'm so over it / you". Dismissive hand motions often follow these sounds.