To me, that doesn't really bring out the meaning of giving someone the brush-off. It's more like simply giving someone either a very brief answer or the answer they want to hear (even if it's not true) in order to get them to go away and stop annoying you.
- Can we meet for coffee?
- Yeah, sometime.
- How about tomorrow?
- Not sure, don't know what I'm doing tomorrow.
- Well, how about Wednesday?
- Yeah, fine, whatever, Wednesday. (and then walk away from the conversation)
The person who started the conversation no doubt thinks that there is a firm agreement in place to meet for coffee on Wednesday but the other person basically just eventually said yes to get out of the conversation. He gave the other person the brush-off.
It can be even more clear than that.
- Hi, you're gorgeous. Would you like to go on a date?
- Er, no. Goodbye.
Student or Learner