Refers to the various "levels" or "degrees" of "milk" (sexual intercourse) that are below the actual "full-fat" kind (hot 'n' heavy copulation with totally bare genitals). These include:
2% milk (where the girl manually/orally "releases the pressure" right beforehand, so that the eager stud will be "freshly emptied" and thus won't be able to cum again for at least a few minutes, and so the girl can safely let him insert his bare cock and thrust inside of her for a while without spurting),
1% milk (where the chick still allows the guy to enter her but insists on his using protection),
Fat-free milk (where the cutie just gives the guy a blowjob or handjob. "Fat-free" milk may often be what is administered by a sympathetic-hearted chick to a second guy --- often while she is simultaneously riding her boyfriend's cock --- as a "cheer-up/courtesy gesture" so that said male bystander won't feel so "left out"; the girl takes pity on the partner-less dude and uses her lips and/or hands to pleasure his cock and let him "vent his pent-up emotions", without actually "giving him any cream" allowing him access between her legs), and
Powdered milk (where the gal lets the guy undress her and caress her all over with his hands and lips, and cuddles naked in bed with him, but does not "pleasure" him orally/manually or permit sexual intercourse of any kind).
2% milk (where the girl manually/orally "releases the pressure" right beforehand, so that the eager stud will be "freshly emptied" and thus won't be able to cum again for at least a few minutes, and so the girl can safely let him insert his bare cock and thrust inside of her for a while without spurting),
1% milk (where the chick still allows the guy to enter her but insists on his using protection),
Fat-free milk (where the cutie just gives the guy a blowjob or handjob. "Fat-free" milk may often be what is administered by a sympathetic-hearted chick to a second guy --- often while she is simultaneously riding her boyfriend's cock --- as a "cheer-up/courtesy gesture" so that said male bystander won't feel so "left out"; the girl takes pity on the partner-less dude and uses her lips and/or hands to pleasure his cock and let him "vent his pent-up emotions", without actually "giving him any cream" allowing him access between her legs), and
Powdered milk (where the gal lets the guy undress her and caress her all over with his hands and lips, and cuddles naked in bed with him, but does not "pleasure" him orally/manually or permit sexual intercourse of any kind).
Three even-more-austere examples of "less-than-whole cow-juice" are:
Curds and whey (where the gal lets the guy feel her up, but does not let him undress her),
Whey (where the gal allows lots of hugs and kisses, but does not let the guy touch her intimately, and
Plain water (where the gal lets the guy hold hands with her and maybe shares an occasional hug with him, but declines the more "lovey-dovey " gestures).
Horny guy: I love my new girlfriend --- nice personality, hot bod, great cook, and so on. I just wish she would let me truly "go all the way", but she only allows me reduced-fat milk --- makes me wear a rubber if I wanna "do it" between her legs!
Curds and whey (where the gal lets the guy feel her up, but does not let him undress her),
Whey (where the gal allows lots of hugs and kisses, but does not let the guy touch her intimately, and
Plain water (where the gal lets the guy hold hands with her and maybe shares an occasional hug with him, but declines the more "lovey-dovey " gestures).
Horny guy: I love my new girlfriend --- nice personality, hot bod, great cook, and so on. I just wish she would let me truly "go all the way", but she only allows me reduced-fat milk --- makes me wear a rubber if I wanna "do it" between her legs!
by QuacksO June 29, 2023
Get the reduced-fat milkmug. When a girl squats over a man's face and uses the man's credit card to cut pieces of the terd coming out of her butthole into bite size pieces.
I saw the the video that Clark made where he paid a lady to do a " milk duds " to him during a scat session.
by Babyguts May 14, 2022
Get the Milk dudsmug. 
Girl, I'm finna milk that oyster.
I went oyster milking and oyster milk squirted all over my face
I was milking my oyster all over their face last night
I went oyster milking and oyster milk squirted all over my face
I was milking my oyster all over their face last night
by Oytis October 14, 2018
Get the Oyster milkingmug. by Black tittie and Rob milk August 15, 2019
Get the Titties & Milkmug. A lovely fair-complexioned rosy-cheeked country-girl who milks cows on a dairy farm, and whom all da lustful guys in da coimmunity want to "milk".
I helped da milk maid to collect da morning's cow-juice in exchange for her being a "cow" to me afterwards --- i.e., letting me "milk her" while she was straddling da milking-stool.
by QuacksO October 22, 2023
Get the milk maidmug. by Drob is dope August 22, 2018
Get the Butt milkmug.