Dextrose content of a (chemical) solution, including blood. Also a pun on dexterity, due to non-intrusive blood sugar monitoring devices which are essentiallylooking for the glucose content of blood (dextrose is also known as d-glucose) by shining light through one's finger.
Like the 9yr. kid Eric Applebaum from Mr. Magorium's Wonder Emporium. Whom was an outsider...with pure innocent's and imagination of a child who feels weird about his special capabilities. As Eric's character is this Uber-Dextrous child that...
Self-proclaimed skill whereby an individual claims to posses ability to use both hands equally well for an activity but in realitypossesses well below average ability with one or both hands.
Phil claims to be ambidextrous but his all-around lack of dexterity on the baseball diamond certainly explains why he gets the close parking spots. He is clearly handi-dextrous.