Man candy is a man who is superficially attractive to look at or a man who has an attractive appearance but who may be vapid and lack substance.

Man candy(草包美男)指外表很吸引人的男子;或者徒有迷人外表，但其實很無趣又沒有內涵的男子。

For example:

Ken is a sweet piece of man candy, Debbie has to be told that looks are not everything.

肯就是個甜美的草包美男，我們應該提醒德比，告訴她外表并不能代表一切。