>>149382236
Are you sure they're not Chinese? Chinese groups are a nuisance here as well.
>>149382524
No. It just means foreigner. It's just the least polite way to say it, but it's not an insult, just not something you'd use in a formal setting.
From most to least formal:
ๅคๅฝ็ฑใฎๆน Gaikokuseki no kata - Person with a foreign nationality
ๅคๅฝใฎไบบ Gaikoku no hito - Person from a foreign country
ๅคๅฝไบบ Gaikokujin - Foreigner
ๅคไบบ Gaijin - Outsider