i know - i have no idea too
and what is a 2nd cousin???

For example you have a cousin who is your aunt's/uncle's kid. Your 2nd cousin would be the son/daughter of your father's/mother's cousin. And so on.

2nd cousin in Spanish at least, is for example your cousin's son

Here is the wiki explanation.

http://en.wikipedia.org/wiki/Family_tree

2nd cousin (and 3rd and so on) are your cousins kids. removed is a bit more complicated. I believe it's something to do with grandparents siblings (which would be your great aunts/uncles). Your great aunt/uncles kids would be your cousin one time removed. their kids (your cousins one time removed) would be your 2nd cousins once removed. i believe.

The "removed thing"

If your grandmom/dad has a cousin, they are your first cousin once removed.

If your great grandmom/dad has a cousin, they are your first cousin twice removed

If your great great grandmom/dad has a sister that has a cousin, they are your second cousin, once removed

Or something like that.

Basically, it's cousins of your parents when you add the whole removed thing.

First cousin twice removed: grandparents were first cousins

Ok maybe I was wrong.

Never have heard about it..

it stands for how many times they have taken soriku off their friends list. lol