As someone who speaks the exact bare minimum amount of Russian to get by in Estonia (so basically hello, please, thank you, fuck you, good bye), there's a couple Russian words of the "not in front of your babushka" type that IMO lose a bit of character when translated to the English phrases that mean the same thing:

похуй - universal answer whenever someone raises a concern

хуйня - very versatile word

I'll let you do the honor of translating them.