A person who is well known to back down when confronted by an ALPHA and/or is an overall pussy.
Also can be used as a general insult
Steve is such a sizzle-dick-motherfucker. He never stands up for himself
by Samurai Mai-Dee-Klong October 30, 2019
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Someone who smiles way too much to be a normal human. They are always happy even at six fucking am on the day that Hitler rises from the dead and carries out nine-eleven all over again. They are probably just an alien attempting to understand human behavior to know if we should be enslaved, destroyed or left alone. They are, however, well meaning so don't hurt them, I don't need earth getting destroyed because you punched a smiley motherfucker just because they were too happy.Someone who smiles way too much to be a normal human. They are always happy even at six fucking am on the day that Hitler rises from the dead and carries out nine-eleven all over again. They are probably just an alien attempting to understand human behavior to know if we should be enslaved, destroyed or left alone. They are, however, well meaning so don't hurt them, I don't need earth getting destroyed because you punched a smiley motherfucker just because they were too happy.
Dave: You killed Greg you smiley motherfucker!
Possible Alien: Next I will cure this world of humanity.
Definitely an Alien: MUHAHAHAHA.
by No_Off_Switch December 04, 2014
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When a male takes his dick, moans like a fucking manatee, and slowly bumps his bitch. Ladies think it’s weird as shit, but nobody gives a damn at this point.
Dudes an Ol Seacow Motherfucker. I know from experience!”
by BlazingFury January 06, 2018
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when you know you just got hacked and you want your hacker to know how much you hate him/her (no sexism here)

you can go wild and search anything and your hacker will know it ( ͡° ͜ʖ ͡°)
you can't use it in a sentence
apparently you have to use the "word" to make it count so "thank you for hacking me, motherfucker
by i_hate_getting_hacked March 28, 2017
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Q: Who played this music?

A: Shon Motherfucking Olson

Q:How did he make that pool shot? I didn't think that was possible.
A:He is Shon Motherfucking Olson, that's how.
by DannyNoonan89 February 24, 2019
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