Professor: So, you boil the water in the can and then dip the can in the cold water upside down and the can implodes.
Student: you mean it will BLOW DOWN???!?!?!!111
Professor: ..................................it implodes

Dude! I saw this AWESOME slo-mo car explosion video backwards and things were LITERALLY blowing down!
by …≥0 December 04, 2010
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The act of a male squatting atop a male/female and directing his erect penis vertically downwards into the mouth of the other person.
John: "How many squats can you do?"
Richard: "I don't do squats, Crystal lets me do blowdowns"
by Meanace September 01, 2015
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To break; An antonym to blow up; usually in reference to a computer application not working.
The crappy code that I wrote caused my program to blow down.
by Anonymous Developer March 21, 2007
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When you really like a dude and you want to give him a blow job show-down. Out of all the blow-jobs your ever given, this is the cream of the crop!
Boy, I'm gonna show you what you've been missing. Get ready for this blow-down.
via giphy
by Unoriginalpseudonmy April 18, 2018
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