Who is a ma'zoor?

Q: Most of the time after urinating a drop of urine comes out.  I was told if I am a ma'zoor my wudu wouldn't break if urine comes out and I can pray more than 1 salah with 1 wudu e.g pray zuhr, asr with 1 wudu so is it correct I can pray more than 1 salah with 1 wudu?