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When a male tries to urinate with his boner turned on. Usually the required technique includes leaning way over the toilet and pointing your boner downwards. 9 times out of 10 the outcome is only disappointment and pain.
Better call the cleaning lady, I just went to the bathroom with a downward rocket.

Dude 1: What’s a downward rocket?
Dude 2: Look it up on Urban Dictionary you Lazy fegh
via giphy
by Proudboyaz March 03, 2018
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