好位 and 好威 are pronounced ho wai in Cantonese with a slight variation in the intonation of the second word. The first ho wai means good seat while the second means very grand.
A friend related this little little story. A lady called him to say she would be performing and asked him to support. OK, he said and mentioned something about giving him a good seat (the first ho wai).
But the lady seemed to have heard the second 'ho wai'.
Depending on the situation and the way you say it, 好威 can mean a praise or a sarcastic remark.
She repeated the words inquiringly. So the friend had the chance to clarify.
It would be unfortunate if she had kept quiet but keeps it at heart, thinking he was being sarcastic.