Your dad's 2nd cousin is your 2nd cousin once removed.
He would be your second cousin.
Second couins
yes, you can. If your dad and your cousins mom are brother and sister then you can date your cousins cousin on your cousins dads side.
If she is your grandpa's step-niece, she would be your mom's step-cousin, and your second step-cousin.
2nd cousin
Your father's first cousin's son is your second cousin. Your father's second cousin's son is your third cousin. If your are asking about your fathers cousins who are in a removed cousin relationship to your father, their relationship to you be more complex, with two different possibilities in each case.
not really
your cousin.
A cousin.
Your dad's first cousin would be your first cousin, once removed. "Once removed" simply means one generation above or below yours. You and your dad's cousin's kids are second cousins to each other.
If you are his second cousin, he is your second cousin
Asking about your second cousin's cousin's cousin is asking about a complex but poorly defined relationship. Are the cousins of the second cousin his first cousin, second cousin, fifth cousin twice removed, or something else. It is likely that a cousin's cousin's cousin is not related to you at all. It is also possible that your second cousin's first cousin's first cousin is also your second cousin.