The people I call the most in my life are as follows: my boyfriend, my mom, and my dad. Rather than shout out their names, however, now Google Voice Search lets me identify them by their relationship to me.
In a Google+ blog post, Google announced a Voice Search update with a new feature that lets you pull up a contact just by shouting it out—after you set it up first, of course. It works with a variety of family members, including siblings, grandparents, cousins, and nieces and nephews. In-laws and step-relatives don’t seem to work yet, but boyfriends and girlfriends do!
You should have the feature now, since it’s part of Google’s backend services associated with Voice Search.