Dextrose content of a (chemical) solution, including blood. Also a pun on dexterity, due to non-intrusive blood sugar monitoring devices which are essentially looking for the glucose content of blood (dextrose is also known as d-glucose) by shining light through one's finger.
A: "I have been feeling very feint lately."

B: "Maybe you have low blood sugar, go get a blood test."

A: "But I am afraid of needles."

B: "Then get a dextrosity check, you pussy."
by minagica April 10, 2011
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Used when describing music that is toxic because of excessive dexterous technique. It relates to "monstrosity" and "dexterous"
That band are an absolute dextrosity!
by spoonfedbutangry August 28, 2010
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