How come it's okay to call your brother 'bro', but you can't call your mother 'mo'?

You call her "ma"

Because your bro typically won't retaliate with heat seeking, target locking intercontinental hypersonic slippers 🩴

Yes there should be a March on Washington demanding more mothers called Mo!

Becuz the shortform for mother is mom not mo.

Anything wrong with "MOM?"

Rhymes with Ho is the real reason why

Well you can call your Sister, "Sis" but you can't call your father "fat"... well I guess you can, but not as his name holder.

You can.

I called her "Ma," which she hated. Which is why I did it.

Because she might think Larry and Curly are with her

You get it the 3 stooges Moe, Larry and Curly

"ma"?

Because most momma's will jerk a knot up in YO ass lol