It's a greek name meaning in general "victory" It's composed of "nike" and "laos" meaning "victory" and "people" thus, "victory of the people".
It describes a rational, hug-able, happy person, with talents like: painting, solving math problems, doing engineering stuff, skiing, dancing and singing.
Jim: What's wrong, Jack?
Jack: I just can't figure out how to solve this exercise...
*Nicoleta comes to Jack*
Nicoleta: Oh! This is easy. Here you go!
Jim&Jack: Thank you <3<3<3