Hick or the American English equivalent of "shitkicker", "rube", "hillbilly", or "redneck"--a negative term for someone from the country...A "seljober" (hick) is a less pretentious cousin of the standard-issue, less-than-cultured ex- provincial dweller and fresh suburbanite "seljak" (recovering hick), the main difference being that "seljober" describes a person proud or ignorant enough not to have bothered to moderate even his painfully folksy outfit or blatantly rural lingo.
Literally a tit, "sisa" can also depict an excessively egotistic male individual unwilling to share, help or show understanding for a fellow man's predicament, or a cowardly low-life not willing to take a (supportive) stand because of fear.