When your having sex, its the best bit, you know the bit at the end when you blow your beans, qv, or tip your dirt, qv.
In fact its the whole point of the excercise
I stuck my knob is, wiggled it about a bit, chucked my muck, and then rolled over and went to kip
by Simon C May 26, 2004
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to shoot ones load, to spaff ones wad, when ones cock does crow, when excrete ones man juices.

to chuck ones muck.
i was ragging this bird... and she was so tight... if u did her, you'd chuck your muck all over her face...
by Chucker of Muck July 4, 2006
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The act of Jizzing in your hand then throwing it in someone faces
Dave: Our lass loves a bit of Muck Chucking
by Greg_the_Smeg February 7, 2019
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Exit of semen from the penis at point of ejaculation.
"After muck chucking till his balls ached, Bob rolled over and farted"
"OOOh i've chucked my muck!"
"Thank god for that! I have'nt chucked my muck for ages. My balls were like watermelons! "

by gogggg January 27, 2006
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A term most commonly used in a childhood nursery rhyme "don't chuck your Muck in my backyard, my backyard, my backyard. Don't chuck your Muck in my backyard, my backyards full." They are saying that life has already shat on them quite enough, there is enough they are already dealing with so don't add to the mess we already have.

This person is usually visibly showing they are upset in some form, of anger, sadness, hurt, stress etc. and need to release that emotional discomfort. They just feel Mucky.

Common to use during conversation with someone complaining of all their problems.

Sam says, The bills are just stressing him out, and did I tell you The rent went up!! And the cheeseburgers are $10 a person now! What are they thinking?!

Mike replies, "bummer, aw man, but I'm having a great day, Don't Chuck your Muck this way. Suzy, she will listen to you if you need to talk it out."

This term can also mean quite literally someone is getting rid of their unwanted belongings secretly putting them in their neighbors yard.

Timothy tells his wife, "this old chair is garbage, it has got to go! I'll just Chuck My Muck over to Nikkis side yard. She never checks that side of her place, so she will never know."

Patty, Timothy's wife "okay Timmy bear, but I wouldn't be Chucking Your Muck over there before 10pm. I wonder where other people chuck their muck?"
Dad, I can't get my time on the computer because my little brother is always on playing WOW. My laptop is broken and I need some new shoes too. My feet have been bulging through the sides of these ones and my toes are purple by the end of everyday.

Natalie, hunny, I love you very much but I'm not the best with all the muck, but your mother, bless her soul is. Go ahead into the kitchen, she's making dinner and now is the perfect time to chuck your Muck.

Angry son comes into living room and looks at his father and screams, okay dad! It's time to take this outside, you have moved my favorite collection for the last time! Angry son huffing and puffing, I will Chuck you in your Muck so hard!

Dad smiles and replies, "i didn't move those, it was your mother. She's been Chucking Muck around the house all day. I love you buddy!"

Angry son, "Mom!"

We all have Mucky days.
by The_Skyeacorn August 26, 2022
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A politer way of saying to a friend, i'm going to fuck your sister then sloppy jizz over her tits
Dave: Bobby, since you wouldn't make me a brew its Time To Chuck My Muck Over Your Sister's Jubblies
by Greg_the_Smeg February 7, 2019
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