That is a influence from sb. If you read older text like

送交者: steven 于 2013-06-30, 13:21:17:

回答: how do you know it is not common? 由 blackbox 于 2013-06-30, 09:11:31:

水浒传, you don't see that kind of expression. I meant using female gentile part this way, male part however is very common.

both female and male part are commonly used in cantonese (无内容) - blackbox (0 bytes) 2013-06-30, 14:41:26 (721415)
- Not in that context. (无内容) - steven (0 bytes) 2013-06-30, 15:18:33 (721416)