Five minutes to Friday. Story time.
My freshman year in college, I drew a roommate from Costa Rica. He
invited me to a Latin American Students' Club party. On the way
there, I asked him about the proper etiquette when I was introduced
to someone. He told me so say: "Mucho gusto, cabron" ... which
translates literally as "Much pleasure, Billy Goat", but carries a
meaning more like "Glad to meet you, you Son of a Bitch".
I got a wonderfully shocked expression from the first fellow I was
introduced to, for the few seconds it too him to realize I didn't
know what I was saying.