bo jio = you didn’t invite me!
This is really not the most frequently used Singlish phrase, so it’s probably a weird first entry. It achieved this elevated rank thanks to my boyfriend, who said this so many times while laughing at his friend (who went to the gym without him), that it stuck in my head.
Anyway, the upside of this is that I (and now you too) can pull out this phrase in highly specific situations, and we’ll fool people into thinking that our Singlish knowledge is far greater than it actually is thanks to our knowing such an interesting expression. 😉