i live in poland (not from here) but wel i think that you friend got spit on by a polish person
couse there are allmost no gypsies here
Depends on where you live in. Try Wrocław.
O.K., so I've got this huge compendium on my lap(Boris Trubnikov; "The Great Lexicon of Arms and Armour"; Kurpisz Publishing - in case you'd want to get one for yourself), so I can pretend to be knowledgeable.
Rapier it certainly isn't, as those are thrusting weapons, have a diamond-like cross-section, large cross, and often an elaborate handguard.
If not for the inconvenient point of origin(i.e. not eastern Europe), this would look almost like a Shashka(
http://en.wikipedia.org/wiki/Shashka) or a Szabla(
http://en.wikipedia.org/wiki/Szabla), providing the tip of the blade is double-edged, which I can't discern from the pictures.
Most generally speaking, it's a backsword. To be more specific, it's some Spanish variant of a sabre(
http://en.wikipedia.org/wiki/Sabre), even though the handguard is too simple to fit the specific meaning of the word. Most likely a cavalry weapon, as these kinds of swords were standard issue for cavalrymen worldwide, since Napoleonic Wars, up 'till the IWW. The infantry generally switched to bayonets or large knives around the half of the 19th century.
Unfortunately, the lexicon was written by a Russian, so it's got all the variants of swords of Russian armies, but fails to be equally informtive about the Spanish military.
Still, unless you're going to talk to an expert, or a geek, a sabre should be an accurate enough description.
edit: gah, typos.