Help!Russian Expletives Wanted

Despite having studied Russian for three terms as an undergraduate 53 years ago, I never learned any expletives other than "ingest excrement", which just doesn't have the juicy ring I'm looking for.

On Tuesday, or shortly thereafter, I will be meeting a man from Russia, and I would like to greet him by saying,

"Your wife taught us all how to say "Hello" in Russian: [expletive inserted here]."

Please help! E-mail is fine, or post in the comments, but probably the Cyrillic alphabet is better than the Anglo-Roman one. Also, please provide translations so I know what I'm saying [and don't tell me it means "hello"!] I haven't even tried to use any Russian words since I dropped my last course. as an undergrad.