In the postings, the China student slams Singapore for being a "s**t society" with prostitutes roaming the streets of Geylang.

The STOMP (The Straits Times Online Mobile Print) user who reported this incident to the website says he was infuriated when he read the posts.

The STOMPer said, "He comments on his trip to Geylang and talks about girls from his country working in jobs he deems immoral."

In the forum posts, the China student also describes the experience of driving through Geylang as akin to viewing animals in the zoo.

He writes, "'Thai and Vietnamese prostitutes can be found in Singapore's legal brothels, while Chinese prostitutes will stand by the road. From eight to nine o'clock, they will line the street from start to end. Driving past them is like driving past animals in a zoo."

In another post, he displays a photo of 2 "study mamas" with the caption "Study mamas - This s**t society".

In another photo captured of some working girls who are his school-mates, the ex-student expresses his awkwardness at chancing upon his classmates working in Geylang.

"These girls are from my school. I've bumped into school mates here many times before, how embarassing! Once again, i despise this "s**t" society."

He also makes derogatory comments about the nationality, size, and race of the prostitutes in other posts as well, prompting the STOMPer to wonder, "What kind of foreign students are studying in Singapore???"

Some Singaporeans on the forum have reacted strongly to his insults. One offended forum member replied by saying, "take a look at your country first", while another called for more restraint and sensitivity when posting comments on issues concerning "nationalistic pride".

This is not the first time Singaporeans have been riled by comments posted by foreign students.

In an earlier case, a foreign scholar was lambasted in the AsiaOne forum for rejecting a local scholarship because of an "extremely ugly" female who was in the same scholarship tour.