M&D
M/D is how a stupid person spells ‘Most Definitely’ because they think it's fancy. They write it all caps like it's a royal decree.
M/D is just a stupid way to say ‘most definitely’ because they're too lazy to type it properly.
She writes M/D on every single thing she posts, even if it's just about breakfast.
He used M/D in a text about his dog and it looked like he was writing a letter to the Queen.