When an optometry student is practicing tonometry, and leaves a fluorscein tattoo like stamp on the cornea.
"Your technique for measuring IOP needs work, you just left 'A Zastrow.' "
by nguyenless November 11, 2011
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Last name of someone who will always be there. Maybe they have already sacrificed something for you. They look like the sports type but really loves engines and things to get their hands dirty. Zastrow is a family name to organize the good people in this world. Sometimes Zastrows can be a big pain in the rear but they come around eventually. Always look out for them. They are hard to find and a pain to keep but with the right amount of effort they will be there always.
"Your a Zastrow?!"
"Yea! Hey! I'm Henry."
"Cool man."
by Lil Makeout Monster June 25, 2021
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