The same as on anyother hole
4 under par is known as a "Condor".
you have made a lie
A score of one under par
A hole of usually over 500 yards. Where you have (in regulation) 3 shots to hit the green and 2 putts.
A hole in one
on one hole it would be called a condor. that is a hole in one on a par 5
That would be a par, 4.
It is called a condor, although it could only happen if there was a hole in one on a par 5 so it is very very rare, and unlikely.
Then it will be a -3 in that hole
Down the hole in two is equal to an Eagle on a par four hole.
On a par three hole it is also an eagle. On a par four hole it is also a double eagle. It is also called an ace.
Par for the hole.
A bad hole
A birdie is one stroke under par on a given hole.
A birdie is a hole played one stroke under par.
Four under on a given hole is called a condor, a hole in one on a par 5. It is extremely rare.