看到一個大美女，眼神完全被她的美貌吸引，周圍人說的“自私、壞脾氣”等缺點也都不重要了。好吧，你這明顯就是被“美貌催眠”了。

Someone is so hot that you can only see their hotness and take a blind eye to their flaws.
因為某人長得太火辣，以至于你眼里只看到ta的熱辣，而對其缺點視而不見。

Hotness hypnosis describes the situation when one finds their partner so physically attractive that he/she is overlooking the serious flaws in their personality and continues to willingly remain under their trance.
“美貌催眠”指因為某人外形實在出眾，以至于他們的另一半會忽視他們性格中挺嚴重的一些缺點，心甘情愿繼續被他們催眠。

For example:

Paul finally wakes from hotness hypnosis, starts to realize that Daisy is vain and selfish.
保羅終于從“美貌催眠”中醒過來，開始意識到黛茜虛榮又自私。

（中國日報網英語點津 Helen）