In Fargo Episode 5 of Season 1 ("The Six Ungraspables"), Grimly's strange neighbor catches Malvo sitting in his car before Grimly's house listening in on his daughter's conversation with a walky-talky.
The neighbor tells Malvo to get lost and that he is (allegedly) part of the neighborhood watch.
Malvo then does his usual thing and threatens him and his children with a story about how dangerous the world is, to which the neighbor replies with a strange expression I did not understand:
Neighbor: There it is, now the truth comes out.
Malvo: You know, some people think you don't need alarms on second-story windows. Think they can save a few bucks, you know, and still be safe. Another way they save money is they don't hook up the alarm to the phone line. So the bell rings, but the cops don't come. Or they come, but only after the neighbors call. Which, um, if this community's tight, as you say, you know... just might be quick enough to save your life... or your children's lives. Maybe.
Neighbor: (says something like "Seyirim")
Malvo: You're a nice guy. (rolls up his window and drives away)
What does the neighbor say and what meaning has it?
Bonus points if you can shine some light on the significance of the scene, i.e. why is the neighbor able to see Malvo for what he is (evil) and is the neighbor really part of a neighborhood watch or just making that part up to scare Malvo away?