From what I understand a "slip-up" is the same as a "mistake", is that right?
So, the same way I can use the verb "to make", example: Oops, I made a big mistake in this essay, can I say: "Oops, I made a big "slip-up" in this essay"?
Can I also say, "That's just a minor slip-up, don't worry!", and "I slipped up, sorry. I shouldn't have told her your secret. Sorry, for not keeping my lips sealed"?
Any further explanation is more than welcome.
Thanks a million!