Pronounciation: Siau on
1. (i) Quality of being on the ball and extremely focused on a given task, usually to describe a person.
2011 CAROVA. on Singapore Hardware Zone, #1 u all got female fren siao on about soccer eh bo?"Oh no! We're competing against Ah Seng! He always damn siao on, one." via Talking Cock
E.g You can't be a lobo in Seow On Camp, even if you're a stray dog.
Source: Shoulder to Shoulder, National Service Journal
2. To be over-zealous in a negative way.
She is so siao on about her work it scares me.
2011 David Junwei on Twitter If you are a tp student, watch out for the security with a turban, he very siao on one!
Retrieved on 21 Oct 2011