Oh also Wikipedia's description of a casual gamer while I'm on the page.
Casual gamer
"Casual gamer" is a loosely defined term used to describe a type of video game player whose time or interest in playing games is limited compared with a hardcore gamer. Casual gamers can conceivably consist of any people who show more than a passing interest in video games, therefore it is difficult to categorize them as a group. For this reason, games which attempt to appeal to the casual player tend to strive for simple rules and ease of game play, the goal being to present a pick-up-and-play experience that people from almost any age group or skill level could enjoy.[6][24][25][26][27] Casual gaming demographics also vary greatly from those of traditional computer games, as the typical casual gamer is older and more predominantly female,[28][29] with over 74% of those purchasing casual games being women
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http://www.youtube.com/watch?v=6Lo0qD6rOz8