The Bitch Who Gave Me Birth. Instead of calling her mom or mum. You usually call her bitch. This is code and very easy to remember. Instead of getting in trouble for cursing at her. why not call her the BWGMB. Sounds legit dontcha think?
Alex: Can you go out tonight?
You: No the BWGMB won't let me cos she's PMS'ing.
Alex: ugh the BWGMB sucks so much too!