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The number of buttons undone on a v-neck shirt worn by men who are metrosexual.

"That guy with buttons done half way up his shirt rates a 5 on the Metrometre."
by Al Tomo April 12, 2007
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The number of buttons undone on a v-neck shirt worn by men who are metrosexual.
"That guy with buttons done half way up his shirt rates a 5 on the metrometre."
by Al Tomo February 13, 2007
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Get a Metrometre mug for your father-in-law Callisto.