When the penises of 2 dudes in a threesome with a chick accidentally touch.
Joe: "How was that threesome last night?"
Bill: "It was going really well until me and Bob dongknocked. Then it was just awkward."
Jow: "The chick was hot though right?"
by yumyzombieparts June 09, 2011

7 Words Related to dong knock

To hit someone quite hard in the penis area, aka the dong.
Did Aegean just get dong knocked?!?!
YES IT WAS AWESOME!!!
by Breydon November 14, 2006

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