Muckle Buck 

This term is used when you are talking to someone about another person but cannot think of their name at that very moment. You use this to kind of 'stall' and keep the conversation going at that very moment. Later, you can replace it with the name of the person you could no think of during.

Person1: Last night ole' muckle buck fell in the fire!

Person2: Who's muckle buck!?

Person1: James, I couldnt thinkk of his name.

Muckle Buck by mck56 April 18, 2009

Muckle Buckle 

Clam Bag Tea Bag

After a Teabagging incident, Sheila decided to get her own back by attaching her Muckle Buckle to his face while he slept.

Muckle Buckle by MilkyBarKid NI August 15, 2019

Muckleduck 

To beat someone until they are hideous with said persons penis.

I muckleducked this girl last night and it was fantastic.

Muckleduck by random dude face August 28, 2010