You would say "Je viens de Buffalo" in French.
The English word seems to come not from French, but from Portuguese bufalo. The French word for buffalo is "buffle" (masc.) which has the same Latin origin as the Portuguese word.
Buffle
buffle or bison
buffalo or deffinant (deffinantly)
Sabres is the French spelling
Buffalo can be translated into Kikuyu language as Nyati.
buffalo in spanish is el payaso or el pastel
Buffalo wings. The French use French names for genuine French recipes, or for things that are very common in France. They tend to use the original name when they didn't have a specific name for it (a T-shirt, Rock and roll, hamburger) especially when it is something rare in France (baseball, buffalo wings).
Pafalo
Bhaisi.
There is not an adjective definiton however you could say something is buffalo-like or buffalo-esque (not in proffesional situations).