lets say i trademark "pinkadoodle" just a sample name, could i get "pinkadoodle.com" and other domains using the trademark rights?
Indeed. Considering that trademarks do not necessarily grant one a license to seize a domain name from its owner, unless that person can be truly shown to be infringing one's mark. Then again, do you appreciate someone else taking something from you that doesn't belong to them? Something else to consider, perhaps.