It means Shake My Jesus. An Alternative to SMH. Usually pronounced with the voice of Jeremy Clarkson
by Jez3my March 18, 2020
Is when your best friend does something silly or stupid to an inanimate object or when a friend does something to you that has offended you. Can also be used as an insult.
Man1 "That ball is so stupid it does not do what I say."
Man2 "Wow you are such a muckelspäck."
Man1 "Stfu you are such a pussy
Man2 "Better watch your mouth or im gonna muckelspäcka you"
Man2 "Wow you are such a muckelspäck."
Man1 "Stfu you are such a pussy
Man2 "Better watch your mouth or im gonna muckelspäcka you"
by Jez3my May 17, 2019