The sexual act when a partner takes a clam shell, inserts one half into the vagina and the other half into the anus. Once inserted, the clam holder must go knuckle deep in both vagina and anus and make the clam shells meet to make a clapping sound.
by ae86guyisbored April 20, 2019
Get the narragansett knucklemug. Mate! Her trouser are so tight they aren't just giving her a mark toes, it's a full on moose knuckle!
by Redneck11 December 5, 2016
Get the Moose knucklemug. by 1oftheBOYS February 12, 2021
Get the Fuck Knucklesmug. Kid watching Youtube video of a kid doing a cool stunt: Dude that's fucking awesome! This kid gets some Internet Knuckles.
by Bubbles_the_Juggles August 4, 2010
Get the Internet Knucklesmug. by condenast June 23, 2019
Get the Rough Knucklemug. by Ninjawrestler March 29, 2009
Get the Bloody Knucklemug. by pollock1 September 23, 2010
Get the dick-knucklesmug.