What does it mean if someone is a 3rd cousin, once removed?

Answer 1

Let me try this and see if I can keep it straight.
A and B are sisters.
A has C& D. B has E. That makes C&D first cousins to E.
C has F. F would be second cousin to E.. E has G,
F now has a baby boy, named H.. G has I.
H is third cousin to E.and 3rd cousin once removed to I.

Confusing, isn't it?

Answer 2

omgosh. I'm glad my mom didn't see this question. she has that type of thing down. I'll be like, hey mom, how am I related to this person. and she'll start talking about how they could be my cousin twice removed and what not. Unfortunately, I have no idea.