I have seen online that toothbrush swallowing is a rare event but people have done it, im not asking how its done, but is it possible for anyone to swallow one or just certain people :?

I think you asked this question before. No one that I know of can swallow a tooth brush but I read some weird cases in psychiatry when household objects are revealed in the stomach and intestines of the patients by abdominal X-ray and there were no satisfactory answers for those cases.

This concept is as stupid and dangerous as it was when first discussed over a year ago. Repeating the question doesn't make it cute, novel, or less dangerous. The only thing this will lead to is a certain need for serious surgery.

It's possible if one is under the influence of alcohol, or drugs. A small brush is more likely, a normal size brush would cause a gag reflex or choke ones self.