what is "kurunika" i always hear it in korean dramas. :D gamsahabnida.

Question

Answer

그러니까 ("kurunika") = 그래서 = 그렇기 때문에 = 따라서 ...etc 
accordingly;consequentlyhence;(an)so;therefore;for that reson;on that account[score]
ex.
그러니까 그는 친구가 많다. 
that is why he has so many friends.

addition
그러니까 말이야 ; 그러게 말이야 ; 그러게 ; 내말이 ...etc
you are right.

Answer

i think it means "because of that" or moreover/likewise...