It's/that's a bit steep spoken language phrase
That's a bit more expensive than expected.
A: I bought this car at the price of 100000 dollars B: What! It's a bit steep, isn't it? I remembered my friend buying it for only 80000 dollars.
That's a bit steep compared to the previous store we have visited.
That's rather unfair or untrue.
It's a bit steep to make him pay for everything.
Why were girls not allowed to take part in this contest? That's a bit steep.
To change the price of something
To be treated unfairly or badly
Used to indicate something that is very expensive