I've probably forgotten a huge amount of options due to A LARGE ARRAY OF FACTORS (I had to look up like 3 of these), but here we go.

So yeah, what's your favorite Massassi-related slur/expression?

Bonus question: And for that matter, do you use them in real life?

Of all these, I use "menkey" quite a lot of situations that have nothing to do with Massassi.

("kak" also includes all variations e.g. kakdammit, kakhole, etc.)
("spleen" is included because for some reason that word was all the rage in 2002 or so. Especially by MadQuack. Who I didn't list in my Returnees thread. Same with kak. WAY TO GO, FAGSTAMERR LOL)

I say "kakdammit" so often IRL that a coworker started saying it too.

This thread does not deliver.

"Fuq" is a popular one on NeS.

"Nikumubeki"

Kakdamnit, I should have read your post before voting. I love kak, mainly because it really is a slur in German.

.

I use "assbastard" all the time in real life. I didn't even remember it being from here.

Do you even say anything else anymore?

This pisses me off too. I can't believe Antony has come to this. His delivery of the catchphrase, "This thread does not deliver" no longer threads.