When your close girl-friends get together, and you appreciate each other so much (attractive level and intellectually and wholesomely), to the point that it makes you feel kinda gay.

It could also entail some sort of boob touching, feeling each other up (with consent and if the other person also does so but not at a very full on lesbian level - no sex including)
"is this casual lesbianism, cause I feel kinda gay for you right now"

"are you in for some casual-lesbianism right now?"
by teeteeminami February 01, 2021
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A sex position, in which the Greek god Bacchus, has a threesome with a ginger female, and a buzz cut brunette male with a bald spot. The male then deepthroats a plastic lion until he eventually swallows a piece of plastic.
“Yo man, i got super drunk last night and did a casual lion!”

Good for you, largefry, bro! I can never track down a female ginger.”
by Oh no. February 26, 2020
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When you are feeling sad, but you're always feeling sad.
"Hey look there is Tim"
"No don't talk to him he is casually depressed"
by yaboiDavid April 19, 2018
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A person who exhibits trashy qualities similar to white trash but can be of any race
Raven was sooo casual matzah in biology this morning
by Camishqua December 02, 2004
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An act in which a male will purchase sexual favors from a female for the price of an item off the value menu, such as a cheeseburger or McChicken. Can be applied to any fast food restaurant, but is always known as "Casual McDonalds".
I'm going to take Stephanie to the Playland for a little Casual McDonalds.
by Cynna66 March 08, 2016
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When your having intercourse with a female, but you don’t care whether you shoot your amo in her or not. And you decide not to put any effort in.
Bruh I was smashing this girl back and it didn’t feel right and I couldn’t be fucked, so just said to myself it’s just a “casual muckaround” Algoods
by Leke bolo January 22, 2021
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